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Puerto, David A., Gail K. Smith, Thomas P. Gregor, Elizabeth LaFond, Michael G. Conzemius, Lori W. Cabell e Pamela J. McKelvie. "Relationships between results of the Ortolani method of hip joint palpation and distraction index, Norberg angle, and hip score in dogs". Journal of the American Veterinary Medical Association 214, n. 4 (15 febbraio 1999): 497–501. http://dx.doi.org/10.2460/javma.1999.214.04.497.
Testo completoAbstract (sommario):
Objective To determine whether results of the Ortolani method of hip joint palpation in dogs were related to distraction index (DI), Norberg angle, or radiographic hip score. Design Cross-sectional study. Animals 459 clinically normal dogs. Procedure Dogs were sedated for radiography and palpation of the hip joints. Results of hip joint palpation were classified as negative, mild positive, moderate positive, or severe positive. Distraction indices were measured for all dogs. Norberg angles were measured for 380 dogs for which ventrodorsal hip-extended radiographic projections were available. Hip scores assigned by the Orthopedic Foundation for Animals (OFA) were available for 95 dogs. Results Age, weight, and sex were not significantly associated with results of hip joint palpation. There was moderate correlation between results of hip joint palpation and DI (r = 0.636), low-moderate correlation between results of hip joint palpation and OFA hip scores (rs = 0.437), and weak negative correlation (r = -0.236) between results of hip joint palpation and Norberg angle. For joints without degenerative joint disease (DJD), there was a significant linear relationship between results of hip palpation and DI; however, for joints with DJD, there was not. Results of hip joint palpation were 5.3-fold as likely to be negative for dogs with DJD as for dogs without. Clinical Implications Results of hip joint palpation were at best moderately correlated with radiographic measures of hip joint laxity. Therefore, hip joint palpation should be combined with hip-extended and stress radiography when assessing hip joint quality. (J Am Vet Med Assoc 1999;214:497–501).
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Кузник, Б. И., Ю. Н. Смоляков, С. О. Давыдов e Д. С. Партс. "State of microcirculatory hemodynamics during knee and hip joint transplantation surgery". Zhurnal «Patologicheskaia fiziologiia i eksperimental`naia terapiia», n. 3 (30 settembre 2022): 52–58. http://dx.doi.org/10.25557/0031-2991.2022.03.52-58.
Testo completoAbstract (sommario):
Актуальность. Изучение особенностей гемодинамики в зоне пораженного артрозом коленного или тазобедренного сустава при трансплантации является актуальной задачей, так как позволяет уже на ранних стадиях послеоперационного периода корригировать терапевтические вмешательства направленные на улучшение кровоснабжения и предупреждение развития тромбоэмболических осложнений. Цель исследования - изучение микроциркуляторных гемодинамических нарушений в зоне пораженных артрозом суставов в до и послеоперационном периоде. Методика. Исследования проведены на 136 пациентах, разделенных на 2 группы: в 1-ю группу вошли 46 больных с артрозами тазобедренного или коленного суставов I-II стадии, 2-ю группу составили 90 больных с аналогичными артрозами III-IV степени. Исследования проводились в предоперационном периоде и на 6-е сут после эндопротезирования. Состояние кровотока изучали с помощью датчика mDLS. Использовали авторскую методику спектрального разложения сигнала на частотные компоненты, связанные с гемодинамическими источниками различной скорости сдвига слоев крови. Для интерпретации результатов многочастотного анализа использовали гемодинамический индекс (Hemodynamic Index, HI): низкочастотный (HI1), определяемый медленным межслоевым взаимодействием, высокочастотный (HI3), характеризующий быстрые процессы сдвига слоев и HI2 занимающий промежуточное положение (прекапиллярный и капиллярный кровоток). Рассчитывали относительные индексы RHI1, RHI2 и RHI3 обозначающие нормированный (относительный) вклад каждой компоненты индекса в общие динамические процессы. Для каждого компонента HI (HI1, HI2, HI3) использовали дополнительную меру медленных колебаний кровотока - осцилляторный гемодинамический индекс (OHI). Определяли следующие OHI, храктеризующие движение крови: ассоциированное с эндотелием (NEUR), вызываемое мышечным слоем сосудов (MAYER), задаваемое дыхательным циклом (RESP) и пульсовыми толчками (PULSE). Результаты. B зоне проекции больного сустава по сравнению со здоровым резко снижены гемодинамические индексы HI1 и НI2, а также RHI1 и RHI2. Одновременно в зоне пораженного сустава резко возрастает величина гемодинамических индексов HI3 и RHI3, что свидетельствует об усилении сдвига в осевом потоке, а также значительно увеличивается осцилляторный индекс MAYER1. После трансплантации сустава в зонах проекции здорового и пересаженного сустава практически сохраняются те же различия, что и в дооперационном периоде. Одновременно в послеоперационном периоде уменьшаются индексы PULSE1 и PULSE3. В зоне проекции здорового сустава после операции отмечается увеличение осцилляторных индексов MAYER1 и MAYER2 и снижение индекса PULSE1. В зоне пораженного сустава в послеоперационном периоде увеличивается соотношение HI1/HI3, что может быть связано с усилением эндотелиальной дисфункции. Заключение. Представленные данные свидетельствуют о том, что в зоне пораженного сустава развиваются значительные нарушения микрогемодинамики, что не может не сказаться на течении патологического процесса. Studying hemodynamics in the area of the knee or hip joint affected by arthrosis during transplantation is a significant task. Such studies would allow adjustment of the treatments aimed at improving the blood supply and preventing thromboembolic complications already in early postoperative period. Aim. To study microcirculatory hemodynamic disorders in the area of joints affected by arthrosis in the pre- and postoperative periods. Methods. The study included 136 patients divided into 2 groups: the first group consisting of 46 patients with stage 1-2 arthrosis of the hip or knee joint and the second group consisting of 90 patients with stage 3-4 arthrosis of the same kind. The study was performed in the preoperative period and on Day 6 after joint arthroplasty. The state of blood flow was evaluated with a mDLS transducer using the authors’ method of spectral signal decomposition into the frequency components related with hemodynamic sources of different shear rates of blood layers. For interpretation of results of the multifrequency analysis, the hemodynamic index (HI) was used: low-frequency HI (HI1) determined by the slow interlayer interaction, high-frequency HI (HI3) that characterizes fast processes of the shear of layers, and HI2 that is intermediate (precapillary and capillary blood flow). Relative indexes, RH1, RH2, and RH3, were calculated, which designate a normalized (relative) contribution of each component of the index to overall hemodynamic processes. For each HI component (HI1, HI2, HI3), an additional measure of slow circulatory fluctuations was used, the oscillatory hemodynamic index (OHI). The following OHIs, that characterize the blood flow, were determined: endothelium-associated (NEUR), determined by the vascular muscular layer (MAYER), respiratory cycle-driven (RESP), and pulse impulses (PULSE). Results. In the projection zone of the affected joint as compared with the healthy one, the hemodynamic indices HI1 and HI2, as well as RHI1 and RHI2, were sharply reduced. At the same time, the hemodynamic indices HI3 and RHI3 were sharply increased in the area of the affected joint, which indicated an increase in the axial flow shear; the oscillatory index MAYER1 was also significantly increased. After joint transplantation, practically the same differences as in the preoperative period were maintained in the projection zones of the healthy and the transplanted joints. At the same time, the PULSE1 and PULSE3 indices decreased in the postoperative period. In the projection area of the healthy joint after surgery, the oscillatory indices MAYER1 and MAYER2 were increased whereas the PULSE1 index was decreased. In the area of the affected joint in the postoperative period, the HI1/HI3 ratio was increased, which could have been due to aggravated endothelial dysfunction. Conclusion. Significant microhemodynamic disorders develop in the area of the affected joint, which must affect the course of the pathological process.
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Ro, Du Hyun, Joonhee Lee, Jangyun Lee, Jae-Young Park, Hyuk-Soo Han e Myung Chul Lee. "Effects of Knee Osteoarthritis on Hip and Ankle Gait Mechanics". Advances in Orthopedics 2019 (24 marzo 2019): 1–6. http://dx.doi.org/10.1155/2019/9757369.
Testo completoAbstract (sommario):
Introduction. Knee osteoarthritis (OA) can affect the hip and ankle joints, as these three joints operate as a kinetic/kinematic chain while walking. Purpose. This study was performed to compare (1) hip and ankle joint gait mechanics between knee OA and control groups and (2) to investigate the effects of knee gait mechanics on the ipsilateral hip and ankle joint. Methods. The study group included 89 patients with end-stage knee OA and 42 age- and sex-matched controls without knee pain or OA. Kinetic and kinematic parameters were evaluated using a commercial optoelectric gait analysis system. Range of motion (ROM) during gait, coronal motion arc, and peak joint moment of hip, knee, and ankle joints were investigated. Results. Ankle varus moment was 50% higher in the OA group (p=0.005) and was associated with higher knee adduction moment (p<0.001). The ROM of the hip and ankle joints were significantly smaller in the OA group and were associated with limited ROM of the knee joint (both p<0.001). The coronal motion arc of the hip was smaller in the OA group and was also associated with limited motion arc of the knee (p<0.001). Conclusions. Knee OA has a negative effect on the ROM, coronal motion arc, and joint moment of the ankle joint and hip joint. As knee OA is associated with increased moment of the ankle joint, attention should be paid to the ankle joint when treating patients with knee OA.
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Garkavenko, Yuriy E. "Bilateral pathological hip dislocation in children". Pediatric Traumatology, Orthopaedics and Reconstructive Surgery 5, n. 1 (31 marzo 2017): 21–27. http://dx.doi.org/10.17816/ptors5121-27.
Testo completoAbstract (sommario):
Introduction. Pathological dislocation of the hip is one of the most severe complications of acute hematogenous osteomyelitis. The program of treatment for children with pathological hip dislocation is complex, but it has been sufficiently developed and implemented very successfully. At the same time, the available literature provides no cases of treating children with bilateral pathological hip dislocations after hematogenous osteomyelitis. There is no information on the incidence of such cases or in regards to remote functional results.
Materials and methods. The results of the treatment of 18 children with bilateral pathological dislocation of the hip after hematogenous osteomyelitis are presented, which constituted 23.1% of the total number of patients (78) who underwent surgery in 2000–2016 for the diagnosis of pathological hip dislocation. Both hip joints were surgically operated on in 12 patients, while one hip joint was operated on in 6 patients. To assess the anatomical and functional state of hip joints, the clinical and roentgenological diagnostic techniques were used.
Results and discussion. To stabilize and restore the function of the hip joints, 18 children underwent 30 surgical interventions: simple open hip reduction (19) and open hip reduction with hip arthroplasty with one (6) or two (5) demineralized osteochondral allogeneic grafts. The decision regarding the possibility of performing surgical intervention on the second hip joint was made only after a child's check-up examination was complete and after positive information about the anatomical and functional state of the operated hip joint was obtained. According to these criteria, 14 (77.8%) children underwent surgical treatment of the second hip joint 1–1.5 years after the course of conservative measures to restore the range of motion in the previously operated hip joint.
Over a period of 1–12 years, 17 patients were examined, 10 of which underwent an operation on both sides (27 joints). The preservation of up to 80º or more of motion amplitude was noted in 17 (62.9%) of 27 operated hip joints. When assisting patients with pathological hip dislocation, it is necessary to understand that it is practically impossible to restore the affected joint to the anatomical state of the opposite unaffected joint. As for the bilateral lesion, this is most certainly impossible, and the development of arthrosis is inevitable. Therefore, the most important factor reflecting the degree of well-being and stability of the affected joint is the amplitude of active movements. Preserving this amplitude in the affected joints with a careful and attentive attitude is a fundamental and feasible task.
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M, Yatsulіak, Nemesh M, Martsyniak S, Kabatsiy M e Filipchuk v. "Original positioning method to determine the clinical and radiographic parameters of the hip joint in patients with cerebral palsy". MOJ Orthopedics & Rheumatology 13, n. 4 (16 agosto 2021): 90–93. http://dx.doi.org/10.15406/mojor.2021.13.00555.
Testo completoAbstract (sommario):
Relevance: Obtaining true radiographic parameters of the hip joint helps to choose therapeutic tactics for children with cerebral palsy. Goal of the study: Improvement of the diagnostic results in pathology of the hip joint among patients with cerebral palsy by using our original method. Materials and methods: The number of examined patients – 30 persons (60 joints), 15 boys and 15 girls, 26 joints were operated. The age of patients ranged between 3-15 years. All patients underwent a clinical evaluation – Ruwe's femoral torsion, as well as radiography of the hip joints using our original method (utility model patent №137567). The offered method is cheap, simple and accessible to all medical institutions with an X-ray room, for the diagnosis and screening of pathology of the hip joint. The our original method can be used to determine all the main parameters of the hip joint (femoral torsion, neck-shaft angle, Viberg angle, Reimers’ index, acetabular angle, Sharp’s angle) in patients with cerebral palsy. Making only single radiograph, one obtains true radiographic parameters of both hip joints, which significantly reduces the radiation load upon the patient. Our method can be used in the examination and screening of patients with developmental disorders and other diseases of the hip joint.
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Kamimura, Mikio, Yukio Nakamura, Shota Ikegami, Shigeharu Uchiyama e Hiroyuki Kato. "Joint Pain Undergoes a Transition in Accordance with Signal Changes of Bones Detected by MRI in Hip Osteoarthritis". Open Rheumatology Journal 7, n. 1 (30 settembre 2013): 67–74. http://dx.doi.org/10.2174/1874312920130823002.
Testo completoAbstract (sommario):
Objectives: In this study, we aimed to investigate whether joint pain is derived from cartilage or bone alterations. Methods: We reviewed 23 hip joints of 21 patients with primary hip osteoarthritis (OA), which were classified into Kellgren–Laurence (KL) grading I to IV. Plain radiographs and magnetic resonance imaging (MRI) were obtained from all of the 23 joints. Two of the 21 patients had bilateral hip OA. Pain was assessed based on the pain scale of Denis. A Welch t test was performed for age, height, weight, body mass index, bone mineral density, and a Mann–Whitney U test was performed for KL grading. Results: Four of 8 hip joints with pain and OA showed broad signal changes detected by MRI. Fourteen hip joints without pain, but with OA did not show broad signal changes by MRI. Collectively, MRI analyses showed that broad signal changes in OA cases without joint pain or with a slight degree of joint pain were not observed, while broad signal changes were observed in OA cases with deteriorated joint pain. Conclusion: Our findings suggest that hip joint pain might be associated with bone signal alterations in the hips of OA patients.
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Platonova, Yana V., e Valentina I. Syutina. "Methodological approaches to improving hip joint mobility among female students of higher educational institutions". Medicine and Physical Education: Science and Practice, n. 12 (2021): 75–81. http://dx.doi.org/10.20310/2658-7688-2021-3-4(12)-75-81.
Testo completoAbstract (sommario):
Introduction. The statistics revealed during the literature analysis indicates the wide-spread of joint diseases worldwide, including hip diseases, and all human motor activity depends on the hip functioning. Limited mobility in the joint is caused by a sedentary lifestyle and the absence of movements with involved hip joint. The practice of conducting recreational aerobics classes with female students has shown the lack of girls’ proper attention to the mobility problem in the hip joints. Methods. 200 female students of 1–4 courses of Derzhavin Tambov State University, engaged in recreational aerobics, took part in the study of hip joint mobility. The study used tests to assess the degree of hip joint opening and to identify the presence of asymmetry when the legs are pulled to the sides. Results. There is a unidirectional tendency in the ability to perform motor action with the maximum amplitude of movement in the hip joints of female students of 1–4 courses. The thighs of the students open in the same way; there is no asymmetry between the right and left legs when opening. Conclusions. The study helped to draw up an overall balance and identify trends in the development of hip joint mobility in girls, to understand the causes leading to pelvic displacement and limited hip flexion amplitude, to expand the understanding of methods for assessing hip joint mobility and tests for detecting asymmetry when the legs are pulled to the sides.
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Kołodziejczyk, Kamil, Adam Czwojdziński, Andrzej Sionek e Jarosław Czubak. "Assessment of the endoprosthesis offset in a dysplastic coxarthrosis". Acta Orthopaedica Belgica 88, n. 3 (settembre 2022): 541–48. http://dx.doi.org/10.52628/88.3.8740.
Testo completoAbstract (sommario):
Incorrectly developed acetabulum and subluxated hip joint may cause many problems for proper implantation of endoprosthesis. The aim of this work is to assess the radiological results of offset restoration and selection of endoprosthesis implant in a dysplastic hip joint. The study group consisted of patients who had a surgery in the period between 2016 and 2018. All of them had a cementless total hip endoprosthesis. The group consisted of 91 patients (96 hip joints), with an average age of 42 years (31-47 years). 55 left and 41 right hip joints. 70 females and 21 males. The control group consisted of patients who were not diagnosed with hip joint dysplasia. The control group consisted of 70 patients (70 hip joints), with an average age of 35 years (19-55 years). 53 females and 17 males. The radiographic assessment included the measuring of medialization and distalization which describe the offset of hip joint. The joint decentration was classified according to Crowe. Based on radiographic measurements we have achieved statistically significant (p<0.05) changes in medialization and distaliza- tion parameters. We have not noticed a statistically significant difference for medialization parameter (p=0.8259) after a surgery when compared to the control group. For all patients we have achieved a restoration of correct offset in the horizontal plane. The main idea behind endoprosthesis in a dysplastic coxarthosis is the implantation of endoprosthesis cup in an anatomically correct location. Small screw- in cup and conical stem offer great possibility of restoring correct offset of a dysplastic hip joint.
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Smith, Gail K., Darryl N. Biery e Thomas P. Gregor. "New concepts of coxofemoral joint stability and the development of a clinical stress-radiographic method for quantitating hip joint laxity in the dog". Journal of the American Veterinary Medical Association 196, n. 1 (1 gennaio 1990): 59–70. http://dx.doi.org/10.2460/javma.1990.196.01.59.
Testo completoAbstract (sommario):
Summary From mechanical principles and postmortem observations of coxofemoral joints of dogs, a hydrostatic mechanism influencing hip joint stability was discovered. This discovery led to the development of a stress-radiographic positioning method to quantitate hip joint laxity in dogs. The method incorporated 2 views with the dog in supine position and hips at neutral flexion/extension angle: a compression view, with the femoral heads fully seated in the acetabula; and a distraction view, with the femoral heads at maximal lateral displacement. An index measurement method was formulated to quantitate the relative degree of joint laxity appearing in either the compression or distraction view. Clinical evaluation of 6 dogs was done to compare the compression/distraction method with the standard hip-extended radiographic method. Also, the stress-radiographic method was performed on 16-week-old Borzoi and German Shepherd Dogs to compare the characteristics of inherent hip joint laxity in these breeds. In all dogs tested, hip joint laxity was masked by the standard hip-extended view as indicated by a 2.5-fold improvement in sensitivity to hip joint laxity of the new method (P < 0.00001). Moreover, the mean hip joint laxity of 16-week-old German Shepherd Dogs exceeded the mean hip joint laxity of Borzois by 79% (P < 0.00001). Reports in the literature document the incontrovertible association of hip joint laxity to the development of hip dysplasia in dogs. We believe the ability to accurately quantitate hip joint laxity will provide key diagnostic and prognostic criteria for the selection of pet dogs, and more importantly, breeding stock.
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Singh, Ranjeet Kumar, e Swati Gangwar. "An assessment of biomaterials for hip joint replacement". International Journal of Engineering, Science and Technology 13, n. 1 (8 luglio 2021): 25–31. http://dx.doi.org/10.4314/ijest.v13i1.4s.
Testo completoAbstract (sommario):
Hip replacement is a surgical process where natural hip joints are replaced by artificial hip joint that helps the human being for getting better lifestyle by reduction in the unavoidable pain and better leg movement. The selection of material and durability of the hip joint replacement are serious significance for the implantation, because it determines how load is transferred through the stem. In the selection of materials, various problems related to hip joint replacement are found like adverse tissue reaction, allergic reaction, wear and corrosion resistance etc. To overcome this problem one has to create different new biomaterial. This review gives brief description about the different biomaterial used for hip joint replacement.
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Scholes, S. C., S. M. Green e A. Unsworth. "The wear of metal-on-metal total hip prostheses measured in a hip simulator". Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 215, n. 6 (1 giugno 2001): 523–30. http://dx.doi.org/10.1243/0954411011536118.
Testo completoAbstract (sommario):
New generation metal-on-metal prostheses have been introduced to try and overcome the problem of osteolysis often attributed to the wear particles of the polyethylene component of conventional metal-on-ultra-high molecular weight polyethylene (UHMWPE) joints. The wear rates of four metal-on-metal joints (two different clearances) were assessed along with that of a conventional metal-on-UHMWPE joint. Friction measurements of the metal-on-metal joints were taken before and after the wear test and compared. Two distinct wear phases were discernible for all the metal-on-metal joints: an initial wear phase up to 0.5 × 106 cycles and then a lower steady state wear phase. The steady state wear rate of the 22 μUm radial clearance metal-on-metal joint was lower than that for the 40 μUm radial clearance joint, although this difference was not found to be significant ( p > 0.15). The wear rates for all the joints tested were consistent with other simulator studies. The friction factors produced by each joint were found to decrease significantly after wear testing ( p < 0.05).
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Cui, Bing Yan, Li Wen Chen, Zhi Jun Wang, Yuan Hao Zhao, Li Zhan Xian e Zhen Lin Jin. "Analysis of Statics and Design of Structur Parameters for a Bionic Robot Hip Joint". Journal of Biomimetics, Biomaterials and Biomedical Engineering 22 (marzo 2015): 3–12. http://dx.doi.org/10.4028/www.scientific.net/jbbbe.22.3.
Testo completoAbstract (sommario):
The hip joint is one of the body's important joints, most of the lower limb activities of the human body are inseparable from the hip joint, a novel bionic robot hip joint was proposed based on 3-DOF spherical parallel mechanism. The statics performance of the bionic robot hip joint was analyzed, and the structure parameters were designed. First, the static transmission equation of the bionic robot hip joint was established using the principle of virtual works, which simplifies the calculation process of the bionic robot hip joint. Further, using the norm in Matrix theory, the force Jacobian matrix was introduced into the statics performance evaluation index, and the statics performance evaluation index and the global torque performance evaluation index was defined, and the performance atlas of the statics performance evaluation index was plotted at the workspace of the bionic robot hip joint. Moreover the objective optimal function was established basing on the global torque performance evaluation index, and the relation of the objective optimal function and the global torque performance evaluation index were analyzed. By use of fully automatic searching method, the optimal structural parameter ranges of the bionic robot hip joint were obtained. Analysis results show that the bionic robot hip joint has good static transmission performance at initial position, and the static transmission performance is decreased with increasing the workspace. Finally, using a set of optimal structural sizes parameters, a novel bionic robot hip joint was designed, which established the theoretical foundation for the bionic robot design and apply.
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Buachidze, O. Sh. "Hip joint implanting". N.N. Priorov Journal of Traumatology and Orthopedics 1, n. 4 (21 marzo 2022): 14–17. http://dx.doi.org/10.17816/vto105147.
Testo completoAbstract (sommario):
The paper provides some experience with hip joint endoprosthesis with Poldi and Beznoska implants, Czechia, used in 210 patients (235 operations). Total and cervicocapital endoprostheses were implanted in 193 and 42 cases, respectively. The indications for total and unipolar joint replacement were severe Stage III coxarthrosis, aseptic necrosis of the head of the femur, pseudoarthrosis of its neck, subcapital fractures with severe limb dysfunctions and persistent pains. Positive results (complete recovery of joint movements and limb load) were noted in 93% of patients in the follow-up periods of 6 months to 18 years. The complications were seen as follows: wound suppuration in 4 patients, aseptic instability in 4 (they all were reoperated), relaxation of a total implant and partial protrusion of the head of a unipolar implant in 6 patients.
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Smith, Gail K., Elizabeth LaFond, Steven J. Heyman, Mark A. Cofone e Thomas P. Gregor. "Biomechanical characterization of passive laxity of the hip joint in dogs". American Journal of Veterinary Research 58, n. 10 (1 ottobre 1997): 1078–82. http://dx.doi.org/10.2460/ajvr.1997.58.10.1078.
Testo completoAbstract (sommario):
Abstract Objective To investigate the in vitro load/displacement characteristics of the hip joints in dogs as a function of joint position. Sample Population 10 hip joints from 5 healthy dogs. Procedure A material test system was used to generate load/displacement curves for each joint. Joints were mounted in a custom-designed jig that held the joint in fixed anatomic orientations while plotting displacement and corresponding applied loads. All hips were cycled between 40 N of compression and 80 N of distraction. Each hip was tested at 10° increments from 30° flexion to 70° extension. Results When the hips were in a neutral orientation (approximately a standing position), load/displacement curves were characteristically sigmoidal (tri-phasic), indicating that, in this position, displacement was not highly dependent on load. The curves had a central low-stiffness region in which most of the lateral displacement took place. In contrast, when hips were positioned at the extremes of flexion and extension, this central, low-stiffness region was less distinct, and load/displacement curves were more linear, indicating a proportional relation between load and displacement. The load/displacement curve of 1 hip joint in the study deviated markedly from the others in a pattern consistent with cavitation of the synovial fluid. Conclusions When the hip joint is positioned in a neutral position, load-displacement behavior is sigmoidal, whereas when the hip joint is in an extended position, load/displacement behavior is more linear. Clinical Relevance Establishing load/displacement behavior of the hip joints in dogs was an important exercise in establishing the position for and estimating the repeatability of a clinical stress-radiographic method for quantitating joint laxity in dogs. (Am J Vet Res 1997;58:1078–1082)
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Gryka, Jakub. "HIP JOINT AND HIP ENDOPROSTHESIS BIOMECHANICS". Journal of Technology and Exploitation in Mechanical Engineering 3, n. 1 (30 giugno 2017): 21–27. http://dx.doi.org/10.35784/jteme.534.
Testo completoAbstract (sommario):
This article contains a description of the basic issues related to anatomy, loading of hip joint and its endoprosthesis research methods. The methods of testing and simulating hip joint loads, factors that influence the selection of parameters during the design of prostheses, typical solutions to engineering problems related to this topic are presented. The article concludes with short summary of the finite element method for the design of hip replacements.
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PLATONOVA, Yana V., Valery N. YAKOVLEV e Sergey V. SAYKIN. "Evaluation of hip joint mobility among female students of higher education institutions". Medicine and Physical Education: Science and Practice, n. 4 (2019): 42–47. http://dx.doi.org/10.20310/2658-7688-2019-1-4-42-47.
Testo completoAbstract (sommario):
In this article we presented the results of the study of hip joint mobility among 1-4 year students of Derzhavin Tambov State University engaged in health aerobics and its various types. The level of development of mobility in female students' hip joints to a large extent determines the effectiveness of training in the equipment of elements in classes of health aerobics, containing a significant number of movements performed by lower limbs (grazing, wavy, squat, etc.). Hip joint refers to spherical joints and therefore allows: bending and unbending; assignment and reduction; pronation and supination; roundabout. In everyday life, the maximum degree of motor load on the hip joint occurs during walking. However, the amplitude of hip movements used in walking does not reach a potential value, and the execution of circular and lateral movements is minimized. This circumstance at classes of health aerobics with female students is clearly demonstrated by the constriction of movements and lack of proper amplitude when performing motor actions with lower limbs. The mobility of female students' hip joint was assessed by the test «Cross split». The average group values obtained by the «Cross split» test served as the basis for the development of a scale for assessing the level of mobility in hip joints.
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Farese, James P., George Lust, Alma J. Williams, Nathan L. Dykes e Rory J. Todhunter. "Comparison of measurements of dorsolateral subluxation of the femoral head and maximal passive laxity for evaluation of the coxofemoral joint in dogs". American Journal of Veterinary Research 60, n. 12 (1 dicembre 1999): 1571–76. http://dx.doi.org/10.2460/ajvr.1999.60.12.1571.
Testo completoAbstract (sommario):
Abstract Objective To determine whether dorsolateral subluxation (DLS) of the femoral head reflects osseous conformation of the coxofemoral (hip) joint and represents a property distinct from maximum passive laxity of the hip joint in dogs. Animals 14 Labrador Retrievers, 16 Greyhounds, 58 Greyhound-Labrador Retriever mixed-breed dogs, and 1 Rottweiler. Procedures DLS of the femoral head (DLS score) and passive laxity of the hip joint (distraction index) were determined radiographically in 3 groups of dogs: not treated (167 joints of 84 dogs); before and after injecting 2 ml of hyaluronan into 25 hip joints of 13 dogs; and before and after unilateral triple pelvic osteotomy in 5 dogs. Results of the 2 methods were compared for each group. Results In untreated dogs, the correlation coefficient (r) of DLS score versus distraction index was −0.73 and −0.69 for 84 left and 83 right hip joints, respectively. Mean coefficient of determination (r2) for both hips was 0.5. Mean DLS score did not differ before and after intra-articular injection of hyaluronan into either hip joint, whereas mean distraction index increased significantly after intra-articular injection. Unilateral triple pelvic osteotomy resulted in a significant increase in DLS score, compared with values obtained before surgery. However, distraction index before and after surgery did not differ significantly. Conclusions and Clinical Relevance The DLS test assesses the congruity of the acetabulum and the femoral head in a canine hip joint and thus represents a characteristic distinct from maximum passive laxity. The DLS score and the distraction index evaluate different components of hip joint stability. (Am J Vet Res 1999;60:1571–1576)
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Zhang, Xia, Wenliang Ge, Hao Fu, Renxiang Chen, Tianhong Luo e Minoru Hashimoto. "A Human-Robot Interaction Based Coordination Control Method for Assistive Walking Devices and an Assessment of Its Stability". Mathematical Problems in Engineering 2018 (18 luglio 2018): 1–17. http://dx.doi.org/10.1155/2018/9279627.
Testo completoAbstract (sommario):
A biologically inspired motion control method is introduced to ameliorate the flexibility and multijoint autonomy of assistive walking devices based on human-robot interactions (HRIs). A new HRI-based coordination control system consisting of a hip central pattern generator (CPG) control, a knee hierarchical impedance control, and a hip-knee linkage control is also investigated. Simulations and walking experiments are carried out which demonstrate that (i) the self-oscillation and external communication characteristics of the CPG are capable of realizing ideal master/slave hip joint trajectories. In addition, symmetrical inhibition in the CPG unit is essential for maintaining the antiphase motion of the left and right hip joints. (ii) High and low hierarchical impedance control laws allow appropriate knee joint torque to be calculated to maintain posture during the support and swing phases as walking proceeds. (iii) A hip-knee joint linkage mechanism which incorporates a hip joint CPG control and knee joint impedance control allows natural and relevant hip-knee trajectories to be realized. The stability of the HRI-based coordination control method is also confirmed using Lyapunov stability theory.
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Maqungo, Sithombo, Anna Antoni, Stefan Swanepoel, Andrew Nicol, Ntambue Kauta, Maritz Laubscher e Simon Graham. "REMOVAL OF RETAINED BULLETS FROM THE HIP JOINT IN CIVILIAN GUNSHOT INJURIES". Orthopaedic Proceedings 105-B, SUPP_15 (7 novembre 2023): 57. http://dx.doi.org/10.1302/1358-992x.2023.15.057.
Testo completoAbstract (sommario):
Removal of bullets retained within joints is indicated to prevent mechanical blockade, 3rd body wear and resultant arthritis, plus lead arthropathy and systemic lead poisoning. The literature is sparse on this subject, with mostly sporadic case reports utilizing hip arthroscopy. We report on the largest series of removal of bullets from the hip joints using open surgical.We reviewed prospectively collected data of patients who presented to a single institution with civilian gunshot injuries that breached the hip joint between 01 January 2009 and 31 December 2022.We included all cases where the bullet was retained within the hip joint area. Exclusion criteria: cases where the hip joint was not breached, bullets were not retained around the hip area or cases with isolated acetabulum involvement.One hundred and eighteen (118) patients were identified. One patient was excluded as the bullet embedded in the femur neck was sustained 10 years earlier. Of the remaining 117 patients, 70 had retained bullets around the hip joint. In 44 patients we undertook bullet removal using the followingsurgical hip dislocation (n = 18), hip arthrotomy (n = 18), removal at site of fracture fixation/replacement (n = 2), posterior wall osteotomy (n = 1), direct removal without capsulotomy (tractotomy) (n = 5).In 26 patients we did not remove bullets for the following reasons: final location was extra-capsular embedded in the soft tissues (n=17), clinical decision to not remove (n=4), patients’ clinical condition did not allow for further surgery (n= 4) and patient refusal (n=1). No patients underwent hip arthroscopy.With adequate pre-operative imaging and surgical planning, safe surgical removal of retained bullets in the hip joint can be achieved without the use of hip arthroscopy; using the traditional open surgical approaches of arthrotomy, tractotomy and surgical hip dislocation.
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Hoshko, V. Yu, N. O. Naumenko, M. B. Yatsuliak, A. I. Cheverda, M. M. Nemesh e S. M. Martsyniak. "The Method of Determining Clinical and Roentgenogrammetric Indicators of Hip Joint in Patients with Cerebral Palsy". Visnyk Ortopedii Travmatologii Protezuvannia, n. 4(107) (20 dicembre 2020): 35–42. http://dx.doi.org/10.37647/0132-2486-2020-107-4-35-42.
Testo completoAbstract (sommario):
Summary. There is no doubt that obtaining the true parameters of the hip joint makes it possible to determine the tactics of treatment of patients with cerebral palsy and it is a relevant object of studying.
Objective: to improve the results of diagnostics of pathology of the hip joint in patients with cerebral palsy by developing our own method.
Materials and Methods. The study included 20 patients (40 joints): 10 boys and 10 girls. Sixteen joints were operated on. The patients were 3-15 years of age. Femoral torsion according to Ruwe was clinically determined in all the patients; also, our own method for determining the clinical and roentgenogrammetric parameters of the hip joint (utility model patent No. 137567) was used.
Results. Our own method is simple, available and cheap; it may be used in all medical institutions with X-ray rooms for the diagnosis of hip joint pathology, as well as for screening.
Conclusions. Our own method is simple and reliable for determining the parameters of the hip joint in patients with cerebral palsy (femoral torsion, neck shaft angle, Wiberg's angle, Reimer's index, vertical migration index, acetabular angle, the angle of inclination of the acetabulum) in patients with cerebral palsy. Obtaining radiographic parameters of both hip joints after only one radiograph also significantly reduce the radiation load on the patient, since patients with cerebral palsy are the subject of screening throughout the entire period of their development. This method can be also applied during the examination and screening the patients with developmental disorders and other diseases of the hip joint.
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Wannop, John, Nicole Schrier, Marie-Louise Wolter, Ryan Madden, Zach Barrons e Darren Stefanyshyn. "Changes in Joint Power and Energetics during a Sport-Specific Jumping Fatigue Protocol". Applied Sciences 13, n. 3 (17 gennaio 2023): 1231. http://dx.doi.org/10.3390/app13031231.
Testo completoAbstract (sommario):
Kinematic and kinetic changes in the lower extremities occur as an athlete becomes fatigued during vertical jumping; however, the specifics of these changes are not well-understood. Therefore, the purpose of this study was to quantify the influence of a sport-specific, vertical jumping fatigue protocol on the biomechanics of the ankle, knee, and hip joint. Twenty male varsity athletes performed repetitive standing countermovement squat jumps every 20 s until fatigued (vertical jump and reach height decreased to 88% of their maximum height for three consecutive jumps). The kinematics and kinetics of their lower extremities (ankle, knee, and hip) were quantified, and the ankle, knee, and hip joint’s moments, angular velocity, and joint power were compared. The participants performed an average of 175 jumps before they were classified as being fatigued. When they became fatigued, the peak power of the ankle and hip joints were substantially reduced due to a decrease in the angular velocity at both joints. Ankle and hip joint moments were unchanged. Peak power at the knee joint was also unchanged over the course of the jumping protocol. To maintain vertical jumping performance over the course of a game or to delay the influence of fatigue, training should be targeted at maintaining the angular velocity of the ankle and hip joints.
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Calin, Daniel, Daniela Tarniţă, Dragos Popa, Dan Calafeteanu e Dan Tarnita. "Virtual Model and Simulation of the Normal and Affected Human Hip Joint". Applied Mechanics and Materials 823 (gennaio 2016): 167–72. http://dx.doi.org/10.4028/www.scientific.net/amm.823.167.
Testo completoAbstract (sommario):
To generate a virtual human hip is a main goal for our research team. Also, starting from the normal virtual hip joint and using the important orthopedics information was defined the affected hip joint. All these models were generated in a 3D virtual environment starting with CT scanning images. Using an original method all the scanned CT images were re-defined and re-drawn and transferred to the 3D software. The resulted curves were used to generate the bones and the virtual complex system of both hip joints. With motion and geometric constrains the bio-mechanical assemblies were defined, starting from anatomical information. The normal hip joint and the model of the affected hip were defined and exported to ANSYS, software based on Finite element analysis.
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Gharaibeh, Ahmad, Rastislav Sepitka, Jan Pobeha, Daniela Schreierova, Martina Habinakova, Gabriel Vasko e Marek Lacko. "Evaluation of Safety and Efficacy of Traction, Closed Reduction, and Subsequent Hip Fixation in Hilgenreiner Brace in Patients with Severe Forms of Hip Developmental Dysplasia". Advances in Orthopedics 2022 (29 maggio 2022): 1–6. http://dx.doi.org/10.1155/2022/8688770.
Testo completoAbstract (sommario):
Background. Hilgenreiner brace (Hb) was developed to improve hip reduction rate and reduce the incidence of femoral head avascular necrosis (AVN). In children under the age of 18 months with unstable hip joints or a dislocated hip joint, the treatment method involves nonsurgical treatment in most cases. Objectives. To evaluate the effectiveness and safety of traction, closed reduction, and hip fixation in Hb in patients with severe forms of hip developmental dysplasia (DDH) in follow-up. Materials and Methods. Prospective, clinical, cohort observation and retrospective matched-pair analysis. Analysis of medical records was conducted to evaluate the effectiveness of using Hb for treatment of dislocated hip joints in <18-month-old children. The investigated cases were of the dislocated hip joint since DDH was confirmed through clinical and imaging diagnosis and treated by the application of the close reduction method together with Hb, in a nonhuman position (hip joint in 90 degrees of flexion and 80 degrees of abduction). Analysis was carried out using the modified Berkeley’s Mckay criteria and hip joint centralization, and evaluation was done using X-ray images according to the basic modified Severin classification system. Results. The use of Hb applied after overhead traction to (mean 22.8 days, confidence level (95%)) 68 hip joints showed a significant improvement (92%) in the treated hips. In summary, only one brace replacement was performed due to swelling of the thigh and fixation pressure, three cases suffered from hip joint redislocation after removing the Hb (5%), and one patient had bilateral avascular necrosis (2.8%). Conclusions. The use of Hb reduced avascular necrosis of the femur head, maintained higher hygiene conditions, and lowered both the risk of cast breakage and skin complications over the use of hip spica as compared to Hb. Hb is more cost-effective, and radiolucency is an additional advantage for this technique. Closed reduction and application of Hb after oral administration of a bolus dose of chlorpromazine chloride or phenobarbital resulted in complication avoidance of total anaesthesia.
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Incze-Bartha, Zsuzsánna, Sandor Incze-Bartha, Zsuzsánna Simon Szabó, Andrei Marian Feier, Vlad Vunvulea, Ioan Alin Nechifor-Boilă, Ylenia Pastorello, Dezso Szasz e Lóránd Dénes. "Finite Element Analysis of Normal and Dysplastic Hip Joints in Children". Journal of Personalized Medicine 13, n. 11 (10 novembre 2023): 1593. http://dx.doi.org/10.3390/jpm13111593.
Testo completoAbstract (sommario):
From a surgical point of view, quantification cannot always be achieved in the developmental deformity in hip joints, but finite element analysis can be a helpful tool to compare normal joint architecture with a dysplastic counterpart. CT scans from the normal right hip of an 8-year-old boy and the dysplastic left hip of a 12-year-old girl were used to construct our geometric models. In a three-dimensional model construction, distinctions were made between the cortical bone, trabecular bone, cartilage, and contact nonlinearities of the hip joint. The mathematical model incorporated the consideration of the linear elastic and isotropic properties of bony tissue in children, separately for the cortical bone, trabecular bone, and articular cartilage. Hexahedral elements were used in Autodesk Inventor software version 2022 (“Ren”) for finite element analysis of the two hips in the boundary conditions of the single-leg stance. In the normal hip joint on the cartilaginous surfaces of the acetabulum, we found a kidney-shaped stress distribution in a 471,672 mm2 area. The measured contact pressure values were between 3.0 and 4.3 MPa. In the dysplastic pediatric hip joint on a patch of 205,272 mm2 contact area, the contact pressure values reached 8.5 MPa. Furthermore, the acetabulum/femur head volume ratio was 20% higher in the dysplastic hip joint. We believe that the knowledge gained from the normal and dysplastic pediatric hip joints can be used to develop surgical treatment methods and quantify and compare the efficiency of different surgical treatments used in children with hip dysplasia.
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Sonohata, Motoki, Masaru Kitajima, Shunsuke Kawano e Masaaki Mawatari. "Total Hip Arthroplasty for the Paralytic and Non-paralytic Side in Patient with Residual Poliomyelitis". Open Orthopaedics Journal 10, n. 1 (13 maggio 2016): 105–10. http://dx.doi.org/10.2174/1874325001610010105.
Testo completoAbstract (sommario):
Background: Total hip arthroplasty (THA) for poliomyelitis is a problematic procedure due to difficulty in positioning the cup of the prosthesis in the true acetabulum and the risk of dislocation after THA due to the low muscle tone. Methods: We herein present a case of bilateral hip pain with a history of poliomyelitis. Radiograph showed bilateral hip osteoarthritis caused by hip dysplasia due to residual poliomyelitis in right hip joint or developing dysplasia of the hip joint in left hip joint. THA was performed to bilateral hip joints. Results: Six years after bilateral THA, bilateral hip pain significantly improved. Additionally, the muscle strength on the paralyzed right side partially improved. However, the muscle strength on the non-paralyzed left side did not significantly improve. No complications related to the surgery were observed. Conclusion: Promising early results were obtained for THA in our patient with residual poliomyelitis. However, surgeons should pay attention to the potential development of complications concerning THA that may arise due to the residual poliomyelitis.
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Al-Lami, M. A. D., I. F. Akhtyamov, T. Yu Nuriakhmetova e S. A. Lapshina. "Assessment of the effectiveness of the replacement of hip joints in patients with spondyloarthritis". Public health of the Far East Peer-reviewed scientific and practical journal 2, n. 100 (18 giugno 2024): 9–14. http://dx.doi.org/10.33454/1728-1261-2024-2-9-14.
Testo completoAbstract (sommario):
The lesion of the hip joint with ankylosing spondylitis (AS) is an unfavorable prognostic sign and can lead to the endoprosthetics (EP) of the joint. Objective. to evaluate the results of the EP of the hip joints in patients with AS with joint dynamic observation by a rheumatologist and orthopedist during the first year after surgery. Materials and methods. The results of the EP of the hip joint of 120 patients in three groups of one central study were analyzed. The 1st and 2nd groups consisted of patients with ankylosing spondylarthrosis after endoprosthetics of the hip joint, but with various options for maintenance in terms of basic therapy, and the 3rd group with coxsartrosis after planned replacement of the joint. Dynamic observation by the rheumatologist and orthopedist was carried out before the operation, after the operation, after 6 and 12 months. Results. The effectiveness of arthroplasty of large joints with a reliable (p <0.05) decrease in pain (VAS) in the first month after EP, improving functional capacity (BASFI) and a decrease in ASDAS (ASDAS) after 6 and 12 months after EP. There were no complications after the operation. A clinical example of a patient with a severe course of ankylosing spondylitis and the effectiveness of arthroplasty is presented. Conclusion. EP of the hip joints in patients with spondiloarthritis is effective not only in terms of improving the functional ability and removing pain, but also to reduce the activity of the disease as a whole
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Iino, Yoichi, Atsushi Fukushima e Takeji Kojima. "Pelvic Rotation Torque During Fast-Pitch Softball Hitting Under Three Ball Height Conditions". Journal of Applied Biomechanics 30, n. 4 (agosto 2014): 563–73. http://dx.doi.org/10.1123/jab.2013-0304.
Testo completoAbstract (sommario):
The purpose of this study was to investigate the relevance of hip joint angles to the production of the pelvic rotation torque in fast-pitch softball hitting and to examine the effect of ball height on this production. Thirteen advanced female softball players hit stationary balls at three different heights: high, middle, and low. The pelvic rotation torque, defined as the torque acting on the pelvis through the hip joints about the pelvic superior–inferior axis, was determined from the kinematic and force plate data using inverse dynamics. Irrespective of the ball heights, the rear hip extension, rear hip external rotation, front hip adduction, and front hip flexion torques contributed to the production of pelvic rotation torque. Although the contributions of the adduction and external rotation torques at each hip joint were significantly different among the ball heights, the contributions of the front and rear hip joint torques were similar among the three ball heights owing to cancelation of the two torque components. The timings of the peaks of the hip joint torque components were significantly different, suggesting that softball hitters may need to adjust the timings of the torque exertions fairly precisely to rotate the upper body effectively.
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Lenczewski, Kamila, e Małgorzata Wójcik. "Functional connections between the temporomandibular joint and the hip joint". Fizjoterapia Polska 24, n. 1 (21 marzo 2024): 122–25. http://dx.doi.org/10.56984/8zg2ef8r1m.
Testo completoAbstract (sommario):
Introduction. Some of the factors in the formation of temporomandibular joint disorders are changes in the central and peripheral nervous systems. In the context of creating connections between two joints, fascia and the concept of biotensegration are important. The tension created in the tissue is linearly distributed along the entire body. The creation of excessive tension within one structure can lead to the creation of identical tension in a distant structure. Aim of the study. The research hypothesis was that soft tissue manual treatments of the temporomandibular joint, with a duration of 7 minutes per side would affect increased mobility in the hip joint for the motion of the abduction. Results. The obtained value for the right and left hip joint shows a strong and positive correlation. This proves that the therapy performed had an effect on increasing the range of motion. Conclusions. Myofascial release of the tissues of the temporomandibular joint had a positive effect on the increase in the range of motion for hip abduction.
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Brazil, Adam, Laurie Needham, Jac L. Palmer e Ian N. Bezodis. "A comprehensive biomechanical analysis of the barbell hip thrust". PLOS ONE 16, n. 3 (29 marzo 2021): e0249307. http://dx.doi.org/10.1371/journal.pone.0249307.
Testo completoAbstract (sommario):
Barbell hip thrust exercises have risen in popularity within the biomechanics and strength and conditioning literature over recent years, as a method of developing the hip extensor musculature. Biomechanical analysis of the hip thrust beyond electromyography is yet to be conducted. The aim of this study was therefore to perform the first comprehensive biomechanical analysis the barbell hip thrust. Nineteen resistance trained males performed three repetitions of the barbell hip thrust at 70% one-repetition maximum. Kinematic (250 Hz) and kinetic (1000 Hz) data were used to calculate angle, angular velocity, moment and power data at the ankle, knee, hip and pelvic-trunk joint during the lifting phase. Results highlighted that the hip thrust elicits significantly (p < 0.05) greater bilateral extensor demand at the hip joint in comparison with the knee and pelvic-trunk joints, whilst ankle joint kinetics were found to be negligible. Against contemporary belief, hip extensor moments were not found to be consistent throughout the repetition and instead diminished throughout the lifting phase. The current study provides unique insight to joint kinematics and kinetics of the barbell hip thrust, based on a novel approach, that offers a robust evidence base for practitioners to guide exercise selection.
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PODCZARSKA-GLOWACKA, MAGDALENA, ANNA LYSAK e RAFAL SZULC-CIEPLICKI. "The use of combination therapy in rehabilitation of patients with hip osteoarthritis – preliminary report". Baltic Journal of Health and Physical Activity 7, n. 3 (30 settembre 2015): 61–72. http://dx.doi.org/10.29359/bjhpa.07.3.07.
Testo completoAbstract (sommario):
Background: The objective of the study was to assess the effectiveness of a 2-week therapeutic programme consisting of combination therapy and postisometric relaxation and its effect on the mobility of joints and the level of perception of pain in patients with osteoarthritis of hip joints. Material/Methods:The research was carried out on subjects clinically and radiologically diagnosed as patients with osteoarthritis of hip joints. 30 subjects, including 7 men and 23 women (average age of 67.8 yrs), underwent the examinations. The therapy lasted 2 weeks and consisted of 10 treatment sessions. The medical program included a combination therapy and individual exercises, i.e. postisometric relaxation of the hip joint. In the combination therapy conventional TENS and ultrasounds were applied. Moreover, tailored exercises were performed systematically every day at home. Results: The study proved that an individually prepared therapeutic program including postisometric relaxation and combination therapy improves ROM in all planes of hip joins in osteoarthritis. It was also stated that after 2 pain assessment tests (the VAS and Laitinen scales) the therapy was confirmed to be a successful method in pain relief. The researchers also noticed that systematically conducted therapy led to reducing the incidence of pain which is manifested by limitation of pharmacotherapy. Conclusions: The research shows that combination therapy together with postisometric relaxation is an effective form of conservative treatment for degenerative changes in the hip joint.
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Ijaz, Rimsha, Saba Riaz e Sania Maqbool. "Comparing Prognosis of Hip Replacement Outcomes with and without Post-Operative Physiotherapy Sessions: A Five-Year Retrospective Review (2018-2022)". International Health Review 3, n. 1 (15 giugno 2023): 1–19. http://dx.doi.org/10.32350/ihr.31.01.
Testo completoAbstract (sommario):
The hip joint is a ball and socket joint that supports body weight and is responsible for locomotion. Hip replacement surgery is mostly performed when hip pain significantly impedes daily life activities and when non-surgical treatments are ineffective in certain cases. The most common cause of hip replacement is damaged hip joint, which can cause arthritis. Therefore, physical therapy after the replacement surgery of major joints is generally considered helpful for a good prognosis. However, if the patients are given the usual care recommended by the surgeons, the patients recover in the same manner as they do with the physical therapy sessions or the physical therapy usually accelerates the recovery process and prevents future complications. Thus, the current study provides a comprehensive of the recovery of patients who have undergone hip arthroplasty, with or without physical therapy training programs.
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Ashikin Taib, Mai Nurul, Mohd Ariff Sharifudin, Ahmad Afiq Arshad, Muhammad Hafiz Johari e Muhammad Ali Sajjad Rahimin Affandi. "Does Body Mass Index (BMI) Affects the Performance in Prayer by Muslims?" Asian Journal of Medicine and Biomedicine 6, n. 1 (30 aprile 2022): 1–7. http://dx.doi.org/10.37231/ajmb.2022.6.1.475.
Testo completoAbstract (sommario):
Introduction: Muslims need to adopt several postures that require deep flexion of the knee and hip to perform daily prayer obligation. We conducted a cross-sectional study to determine the correlation between body mass index and the range of motion of the joints of the lower limb. Methodology: 115 young male adults aged between 20 to 30 years were recruited. A standard goniometer was used to determine the active and passive range of motions of the hip and knee joints in various postures during prayer. Factors analyzed include body mass index (BMI), length of the lower limbs, and circumferences of the abdomen and limbs. Results: The mean of the passive hip flexion and passive knee flexion were higher compared to other normative range of motion database. The BMI demonstrated a significant correlation with the passive range of motion of the knee joint but not with the hip joint. Conclusion: The ROM involved for prayers was more for the knee joint and less for the hip joint, reflecting a higher knee flexion angle compared to hip flexion is necessary to attain the sitting postures. BMI has a significant linear negative relationship with the knee passive ROM, hence the ability to perform specific postures in prayer.
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Chhabra, Sahil, Navkiran Kaur, Simmi Bhatnagar, Prerna Chhabra e Shivani Puri. "MRI Evaluation of Painful Hip Joint". Asian Journal of Medical Radiological Research 8, n. 1 (5 luglio 2020): 122–27. http://dx.doi.org/10.47009/ajmrr.2020.8.1.22.
Testo completoAbstract (sommario):
Background: The hip is a stable, major weight-bearing joint with significant mobility. It can be involved by numerous pathological conditions like congenital and developmental, infective, arthritic, and neoplastic. Hence, early diagnosis and characterization of pathology play a vital role for the clinicians in proper management and follow-up of the disease. This study aimed to evaluate the role of MRI in the diagnosis of painful hip pathology. Subjects and Methods: This study was a prospective study; total 50 patients were included in this study. This study was conducted at the Department of Radio-Diagnosis, Rajindra Hospital, Patiala. MR Imaging was done with a 1.5 Tesla superconductive scanner (Siemens 1.5 T Magnetom AERA MRI Machine). Results: 26 out of 69 total hip joints affected (including bilateral) were diagnosed as avascular necrosis, 14 hips as osteoarthritis, and 10 hips as septic arthritis. Inflammatory arthritis was diagnosed in 7 hips, femoroacetabular impingement and an acetabular labral tear in 2 hips each. 2 cases were reported as normal hip joint and 1 case each was reported as a primary and metastatic tumor. Conclusion: MRI is the method of choice in characterizing the various disorders of the hip joint, and it can point out specific features leading to an accurate diagnosis of the painful hip joint.
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Wells, J. A., A. C. Nicol, R. Ingram e A. Stark. "HIP JOINT PROPRIOCEPTION FOLLOWING TOTAL HIP REPLACEMENT". Journal of Biomechanics 40 (gennaio 2007): S232. http://dx.doi.org/10.1016/s0021-9290(07)70228-2.
Testo completo
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Rutz, Erich, Dirk Schäfer e Victor Valderrabano. "Total hip arthroplasty after hip joint ankylosis". Journal of Orthopaedic Science 14, n. 6 (novembre 2009): 727–31. http://dx.doi.org/10.1007/s00776-009-1390-3.
Testo completo
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Pazarci, Ozhan, Seyran Kilinc, Yalkin Camurcu e Okay Bulut. "Total hip arthroplasty after hip joint gunshot injury". Journal of Orthopaedic Surgery 27, n. 3 (settembre 2019): 230949901987311. http://dx.doi.org/10.1177/2309499019873113.
Testo completoAbstract (sommario):
Background: Gunshot injury of the hip joint was reported to constitute 2–17% of all extremity firearm injuries. However, there are few studies in the literature related to gunshot injuries of the hip joint. The aim of the current study was to present the results of 10 cases treated with arthroplasty following a gunshot injury to the hip joint together with the recommended treatment algorithm. Methods: Patients with a previous medical history of hip joint region gunshot injury who underwent total hip arthroplasty were retrospectively evaluated. Those with incomplete medical records or who were lost to follow-up were excluded. Patients were classified according to the severity of the previous gunshot injury to the hip joint region. Harris hip score (HHS) and Short Form-12 quality of life score were the main outcome measurements. Postoperative complications encountered during follow-up were recorded. Results: The mean age of the patients at the time of surgery was 29.9 years. The mean preoperative HHS was 25.2 points and it was 65.8 at the final follow-up. Patients with bullet fragments in the hip joint, classified as group 1, had better HHS, whereas those with contaminated hip joint with intestinal flora, classified as group 3, had worst HHS. Conclusion: Hip arthroplasty after hip joint gunshot injury is a good treatment choice in young patients to reduce pain and regain functions. However, very high infection rates can be seen in patients with accompanying intestinal injury.
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Tsuchie, Hiroyuki, Shin Yamada, Hiroshi Tazawa, Hiroaki Kijima e Yoichi Shimada. "Anterior Hip Subluxation due to Lumbar Degenerative Kyphosis and Posterior Pelvic Tilt". Case Reports in Orthopedics 2014 (2014): 1–4. http://dx.doi.org/10.1155/2014/806157.
Testo completoAbstract (sommario):
Nontraumatic anterior subluxation and dislocation of the hip joint are extremely rare. A 58-year-old woman presented to our outpatient clinic with left hip pain with a duration of 15 years. There was no history of trauma or other diseases. Her hip pain usually occurred only on walking and not at rest. Physical examinations demonstrated no tenderness in the hip joint. The range of motion of both hip joints was almost normal. Laxity of other joints was not observed. The bone mineral density of the lumbar spine and proximal femur confirmed a diagnosis of osteoporosis. A plain radiograph showed osteoarthritic changes of the hip joints, severe posterior pelvic tilt, and superior displacement of both femoral heads, especially in a standing position. Three-dimensional computed tomography (3DCT) revealed anterior subluxation of both femoral heads. Seven years after the initial visit, both hip joints showed progression to severe osteoarthritis. Although the exact cause remains unclear, lumbar kyphosis, posterior pelvic tilt, and a decrease in acetabular coverage may have influenced the current case. We should be aware of these factors when we examine patients with hip osteoarthritis.
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Allen, Georgina, Marina Obradov, Vito Chianca, Carmelo Messina e Luca Maria Sconfienza. "Ultrasound-guided Musculoskeletal Interventions for the Most Common Hip and Pelvis Conditions: A Step-by-Step Approach". Seminars in Musculoskeletal Radiology 23, n. 03 (giugno 2019): e58-e67. http://dx.doi.org/10.1055/s-0039-1683965.
Testo completoAbstract (sommario):
AbstractPain around the hip and pelvis is a very common condition. Pain may be generated within the joint space (i.e. the hip joint itself, the sacroiliac joints or the pubic symphysis) or from surrounding myotendinous, bursal, or nerve structures. Over the years, percutaneous musculoskeletal procedures have become increasingly popular to diagnose and treat painful conditions around the hip and the pelvis. Most intra- and extra-articular procedures are performed under ultrasound guidance. This article reviews the most common diagnostic and therapeutic procedures that can be performed around the hip and the pelvis under ultrasound guidance.
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Huzum, Riana Maria, Marius Valeriu Hînganu, Bogdan Huzum e Delia Hînganu. "Advances in Molecular Research on Hip Joint Impingement—A Vascular Perspective". Biomolecules 14, n. 7 (30 giugno 2024): 784. http://dx.doi.org/10.3390/biom14070784.
Testo completoAbstract (sommario):
With the rise in longevity within the population, medicine continues to encounter fresh hurdles necessitating prompt actions, among which are those associated with hip joint aging. Age-related arthropathies encompass damage to bones’ articulating extremities and their supporting structures, such as articular cartilage, and alterations in the quantity and quality of synovial fluid. This study aims to summarize the biomolecular methods of hip joint evaluation focused on its vascularization, using data correlated with biomolecular research on other joints and tissues, in order to reach an objective opinion of the study prospects in this field. Following a retrospective study on most modern biomolecular research methods on the synovium, the capsule, and the articular cartilage of the hip joint, we have hereby concretized certain future research directions in this field that will improve the qualitative and morphofunctional management of the hip joint at an advanced age, even within population categories at risk of developing various degenerative joint pathologies.
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KN, Chethan, Shyamasunder Bhat N e Satish Shenoy B. "Biomechanics of hip joint: a systematic review". International Journal of Engineering & Technology 7, n. 3 (10 agosto 2018): 1672. http://dx.doi.org/10.14419/ijet.v7i3.15231.
Testo completoAbstract (sommario):
Hip joint is the second largest joint in human after knee joint. It is associated with different types of motion which helps in the movement of human body and provide stability. Biomechanics involves the study of movement of living organism. It is important to know and understand the basics of biomechanics of hip joint to define the movement of hip joint along with its load carrying capacity in different day to day activities. Many researchers are worked to know the basics biomechanics of hip joint both in in-vitro and in- vivo conditions. In this paper, it has been reported in detail to know the different biomechanical aspects involved in the hip joint during different movement and also different biomaterials used in the hip joint prosthesis. It is majorly focused on load transmitting by hip joint by upper body to lower body in different activities such as walking, running, stumbling etc. So, these basic understanding helps to understand effectively the joint reaction forces which is acting on hip joint while designing new hip joint prosthesis.
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Cardinet, George H., Philip H. Kass, Larry J. Wallace e Mark M. Guffy. "Association between pelvic muscle mass and canine hip dysplasia". Journal of the American Veterinary Medical Association 210, n. 10 (15 maggio 1997): 1466–73. http://dx.doi.org/10.2460/javma.1997.210.10.1466.
Testo completoAbstract (sommario):
Objective— To investigate the relationship between pelvic muscle mass and development and expression of canine hip dysplasia (CHD). Design— Prospective study. Animals— 5 Greyhounds with anatomically normal hip joints, 59 German Shepherd Dogs (23 with CHD, 24 with near-normal hip joints, and 12 with normal hip joints), and 18 German Shepherd Dog-Greyhound crossbreeds (7 with CHD, 6 with near-normal hip joints, and 5 with normal hip joints) between 12 and 47 months old in which pelvic muscle mass was evaluated. Pectineal muscle and hip joint development were evaluated in 25 German Shepherd Dogs at 8 and 16 or 24 weeks of age. Procedures— For evaluation of pelvic muscle mass, individual pelvic muscles were weighed and hip joints were assigned a score on the basis of severity of degenerative changes, For evaluation of pectineal muscle development, muscle sections were stained and examined. Results— Pelvic muscle mass was greatest in Greyhounds, intermediate in crossbred dogs, and smallest in German Shepherd Dogs. Differences in pelvic muscle mass among breeds were attributable to differences in weights of individual muscles. Hip score was negatively correlated with pelvic muscle mass and weights of selected pelvic muscles. Dogs with pectineal hypotrophy at 8 weeks of age had type-2 muscle fiber paucity or muscle fiber-type grouping at 16 or 24 weeks of age. At 8 weeks of age, hip joints were composed of multiple centers of ossification, and the acetabulum was largely cartilaginous. By 24 weeks of age, the pelvic bones were largely, although incompletely, fused. Clinical Implications— Diminished pelvic muscle mass in dogs with CHD and altered muscle fiber size and composition in 8-week-old dogs that subsequently develop CHD strongly suggest that abnormalities of pelvic musculature are associated with development of CHD. The complex development of the hip joint from multiple centers of ossification may make the joint susceptible to abnormal modeling forces that would result from abnormalities in pelvic muscle mass. (J Am Vet Med Assoc 1997;210:1466–1473)
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Yatsuliak, M., S. Martsyniak e V. Filipchuk. "The impact of gait on hip joint formation in patients with cerebral palsy". PAIN, JOINTS, SPINE 12, n. 2 (27 novembre 2022): 59–65. http://dx.doi.org/10.22141/pjs.12.2.2022.330.
Testo completoAbstract (sommario):
Introduction. The influence of the gait on the hip joint formation in patients with infantile cerebral palsy (CP) is an actual object of scientific research. The purpose of the research was to study the correlations between walking and clinical and roentgenometric parameters of the hip joint in the patients with CP. Materials and methods. There were examined 39 patients with CP and pathology of the hip joints (70 joints), who had been treated at the National Research Institute of Traumatology and Orthopedics for the period from 2018 to 2022. The patients had been divided into 2 groups depending on the ability to walk. We had performed a clinical and roentgenogramometric examination of the hip joints in positioning according to our own method and the standard anterior-posterior radiological position. All patients underwent a clinical assessment of femoral torsion using the Ruwe method. To assess the relationships between the studied indices Spearman's correlation analysis was performed. Results. The positive influence of gait on the hip joint formation had been revealed. The average values of the hip clinical and roentgenometric parameters in patients with CP who do not walk were significantly higher compared to those of subjects who walk. Correlation analysis revealed the relationship between walking and the studied parameters of the hip joint (cervical-diaphyseal angle, femoral torsion, acetabular angle, Sharp angle, Reimers index, the center edge angle of Wiberg) in both settings, as well as walking and other factors (age, level lesion, GMFCS scale (II-IV level), congenital dysplasia of the hip joints in the history). At the same time, there was no found any dependence between gait and adductor myotomy in the history. Conclusions. A significant influence of the gait on the following parameters of the hip joint was established: the true cervical-diaphyseal angle (p = 0.00001) in positioning according to our own method, femoral torsion (p = 0.01), acetabular angle (standard setting) (p = 0.00001), Sharpe angle (standard setting) (p = 0.018), Reimers index (standard setting) (p = 0.00007), center edge angle of Wiberg (standard setting) (p = 0.001) and lack of statistical significance of the influence of the adductor myotomy factor in history (p = 0.11) on the walking function.
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Kaya, Ibrahim, Akin Ugras, Necdet Saglam, Ibrahim Sungur e Ercan Cetinus. "Bullet in Hip Joint". Eurasian Journal of Medicine 45, n. 2 (28 giugno 2013): 141–42. http://dx.doi.org/10.5152/eajm.2013.29.
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Enseki, Keelan, Marcie Harris-Hayes, Douglas M. White, Michael T. Cibulka, Judith Woehrle, Timothy L. Fagerson, John C. Clohisy et al. "Nonarthritic Hip Joint Pain". Journal of Orthopaedic & Sports Physical Therapy 44, n. 6 (giugno 2014): A1—A32. http://dx.doi.org/10.2519/jospt.2014.0302.
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Mostafa, Maged Mohamed, Ahmed Al Negm, Sadaf Basheer e Muhammad Sheharyar. "Ochronosis of hip joint". Current Orthopaedic Practice 27, n. 4 (2016): E22—E24. http://dx.doi.org/10.1097/bco.0000000000000382.
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KOROVESIS, PANAGIOTIS, DIMITRIS SIABLIS, PANAGIOTIS SALONIKIDIS e GEORGE SDOUGOS. "Abdominal-Hip Joint Fistula". Clinical Orthopaedics and Related Research &NA;, n. 231 (giugno 1988): 71???75. http://dx.doi.org/10.1097/00003086-198806000-00007.
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Olson, Steven A., Brian Bay e Michael W. Chapman. "Hip Joint Contact Pressures". Journal of Orthopaedic Trauma 7, n. 2 (aprile 1993): 189. http://dx.doi.org/10.1097/00005131-199304000-00084.
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Somford, Matthijs P., Daniël Hoornenborg, Johannes I. Wiegerinck, Stefan B. T. Bolder e Berend W. Schreurs. "Eponymous hip joint approaches". Archives of Orthopaedic and Trauma Surgery 136, n. 7 (30 aprile 2016): 1007–14. http://dx.doi.org/10.1007/s00402-016-2456-2.
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Önnerfält, Rolf, e Lars Lidgren. "Prosthetic hip joint failure". Current Orthopaedics 6, n. 3 (luglio 1992): 157–61. http://dx.doi.org/10.1016/0268-0890(92)90042-c.
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Aggarwal, Abhimanyu, e Durane Walker. "Micromonas micros Infection of a Prosthetic Hip Joint: A Case Report and Review of the Literature". Case Reports in Infectious Diseases 2021 (20 settembre 2021): 1–5. http://dx.doi.org/10.1155/2021/9042790.
Testo completoAbstract (sommario):
Micromonas micros is an oral anaerobic Gram-positive coccus and is a commensal of the mouth, and it is rarely isolated in prosthetic joint infections (PJIs) and even less frequently related to a preceding dental procedure with eventual hematogenous seeding of the prosthetic joint. Here, we present a case of a 56-year-old male with a prosthetic hip joint who developed Micromonas micros prosthetic hip joint infection with symptoms starting a few days after a dental procedure and not having received periprocedural antibiotic prophylaxis. He recovered well with surgical intervention and antimicrobial therapy. We conducted a literature review of prosthetic hip joint infections caused by Micromonas micros as well as briefly discuss current guidelines on antibiotic prophylaxis in patients with prosthetic joints undergoing dental procedures and some knowledge gaps.