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Littérature scientifique sur le sujet « Arm and forearm bones »

Auteur : Grafiati

Publié le 25 janvier 2025

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Articles de revues sur le sujet "Arm and forearm bones"

Kumar, Anand, Sonia Jaiswal, P. K. Sharma et Vineeta Tewari. « THE STUDY OF NUTRIENT FORAMEN OF BONES OF ARM AND FOREARM IN ADULTS ». ERA'S JOURNAL OF MEDICAL RESEARCH 5, n^o 1 (juin 2018) : 28–31. http://dx.doi.org/10.24041/ejmr2018.59.

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Sharma, Atul Rai, Akash Singhal, Anurag Patil et Gladson David Masih. « An unusual case of both bones forearm shaft fracture with ipsilateral distal radio-ulnar joint disruption ». Journal of Emergency Practice and Trauma 8, n^o 1 (30 mars 2021) : 66–68. http://dx.doi.org/10.34172/jept.2021.12.

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Objective: Distal radioulnar joint (DRUJ) subluxation with associated both bones forearm fracture is a rare clinical entity and is easily missed, leading to significant functional limitations. Case Presentation: A 28-year-old male fell on the outstretched hand and suffered left side both bones forearm shaft fracture with ipsilateral DRUJ disruption. Operative intervention in the form of plating was done for both bones forearm shaft fracture and DRUJ was stabilised with one k wire and above elbow plaster splint in full supination was given for 6 weeks. At one-year follow-up, fracture was united and Disabilities of the Arm, Shoulder and Hand (DASH) score was 11.7, and he was well satisfied. Conclusion: DRUJ disruption should be carefully evaluated in all the patients with associated shaft fractures of radius and ulna. Timely diagnosis and optimal intervention may prevent any functional limitations.

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Hong, Eunah, Dai-Soon Kwak et In-Beom Kim. « Morphological symmetry of the radius and ulna—Can contralateral forearm bones utilize as a reliable template for the opposite side ? » PLOS ONE 16, n^o 10 (6 octobre 2021) : e0258232. http://dx.doi.org/10.1371/journal.pone.0258232.

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The most important precondition for correction of the affected forearm using data from the contralateral side is that the left and right bone features must be similar, in order to develop patient-specific instruments (PSIs) and/or utilize computer-assisted orthopedic surgery (CAOS). The forearm has complex anatomical structure, and most people use their dominant hand more than their less dominant hand, sometimes resulting in asymmetry of the upper limbs. The aim of this study is to investigate differences of the bilateral forearm bones through a quantitative comparison of whole bone parameters including length, volume, bowing, and twisting parameters, and regional shape differences of the forearm bones. In total, 132 bilateral 3D radii and ulnae 3D models were obtained from CT images, whole bone parameters and regional shape were analyzed. Statistically significant differences in whole bone parameters were not shown. Regionally, the radius shows asymmetry in the upper section of the central part to the upper section of the distal part. The ulna shows asymmetry in the lower section of the proximal part to the lower section of the central part. Utilizing contralateral side forearm bones to correct the affected side may be feasible despite regional differences in the forearm bones of around 0.5 mm.

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Belyaletdinova, Ilmira Kh, Irina V. Mitrofanova, Tatjana V. Kirichenko, Elena N. Abramova, Tatjana V. Arsenyeva, Marina V. Bazarova et Svetlana V. Shakhgildyan. « EARLY CONGENITAL SYPHILITIC PSEUDOPARALYSIS (PARROT’S DISEASE) : A CLINICAL CASE ». Current pediatrics 17, n^o 2 (22 mai 2018) : 152–56. http://dx.doi.org/10.15690/vsp.v17i2.1882.

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Background.Congenital syphilis is a severe intrauterine infection which, affecting most of the organs and systems of a child, can lead to his disability. However, it is extremely difficult to suspect congenital syphilis in a child in the absence of information about prior syphilis in his mother. The article presents a case of a monosymptomatic clinical picture of early congenital syphilis.Description of the Clinical Case. At the age of 1 month, the child had hyperemia, isolated edema of the right forearm, and restriction of limb movements. He was examined by a pediatrician who suspected a fracture of the forearm bones. X-ray did not show any fracture. The situation was regarded as an allergic reaction; desensitizing therapy was prescribed during which the range of movements in the right arm slightly increased. At the age of 2 months, there was a decrease in the range of movements in the left arm. On admission, the condition was regarded as moderate one. No fever; no signs of intoxication. Skin and visible mucous membranes were not changed. Cardiopulmonary activity was satisfactory. The abdomen was palpable in all compartments, painless. The liver was enlarged 6 cm, of dense consistency. The spleen was enlarged 5 cm. Bowel and bladder functions were normal. Neurological status: the reaction to examination was adequate, emotional cry. Cranial nerves without pathology. Can see and hear. Restricted range of movements in the arms; passive movements were painful. Muscle tone in the arms was low, in the legs — closer to physiological one. Equal and brisk tendon reflexes from the arms and legs. Large fontanel 1.5[1]1.5 cm, not protruded. X-ray examination of the forearm bones showed a change in the structure of the epiphyses of both forearm bones that was common to syphilitic osteochondritis.Conclusion. The article describes the complexity of diagnosis of early congenital syphilis in a child aged 2 months in the absence of a corresponding anamnesis in his mother. The need to rule out syphilitic infection in infants with motor impairments, born from unexamined mothers, has been emphasized.

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Zaslavskyi, Petro S. « THE EFFECTIVENESS OF CORRECTION OF HAND MOTILITY BY MEANS OF PHYSICAL THERAPY, OCCUPATION THERAPY (HAND THERAPY) IN THE REHABILITATION PROCESS OF MILITARY SERVANTS WITH THE CONSEQUENCES OF GUNSHOT POLYSTRUCTURAL FOREARM BONE FRACTURES ». Clinical and Preventive Medicine, n^o 4 (30 septembre 2023) : 14–20. http://dx.doi.org/10.31612/2616-4868.4(26).2023.02.

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Aim: to evaluate the effectiveness of the developed program of hand therapy on the parameters of upper limb motility in wounded military servants with the consequences of a gunshot polystructural forearm bones fracture in the post-immobilization period Materials and methods. 49 military servants with the consequences of a gunshot polystructural forearm bone fractures were examined. The control group (23 persons) underwent rehabilitation according to general polyclinic principles. The main group (26 persons) underwent rehabilitation using tools and principles of hand therapy (therapeutic exercises and functional training for the wrist and fingers, forearm, shoulder, all joints of the upper limb, exercises on the mechanotherapeutic table MAPS THERAPY; Proprioceptive Neuromuscular Facilitation, massage of the upper limbs; kinesiological taping; orthotics) lasting 1 month. The effectiveness of the program was evaluated by the functioning of the upper limb when performing the Action Research Arm Test and dexterity by the Nine-hole peg test. Results. In the injured persons with the consequences of a gunshot polystructural fracture of the bones of the forearm in the post-immobilization period, deterioration of the motility of the upper limb according to the Action Research Arm Test and dexterity according to the Nine-hole peg test, which are factors of disruption of the normal functioning of the upper limb, were determined. After the rehabilitation intervention, all examined persons showed an improvement in motility according to the Action Research Arm Test in the control group by 14.7%, in the main group by 35.4%, according to the Nine-hole peg test - by 61.8% and 22.3%, respectively. According to all studied parameters, the patients of both groups showed a statistically significantly better result compared to the initial data (p<0.05), however, the subjects of the main group showed a better result than the patients of the control group (p<0.05). Conclusions. The hand therapy program demonstrated a statistically significantly better effect (p<0.05) on all studied indicators of upper limb motility compared to the polyclinic rehabilitation program, which confirms the need for the use of specialized rehabilitation directions in patients with upper limb injuries that take into account the anatomical and physiological features of the hand and its role in activities of daily living.

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Shvedovchenko, I. V., et V. S. Prokopovich. « Surgical treatment of proximal forms of congenital ectromelia of the upper limbs in children ». N.N. Priorov Journal of Traumatology and Orthopedics 9, n^o 4 (2 février 2022) : 73–77. http://dx.doi.org/10.17816/vto99994.

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Three cases of the proximal form of congenital upper extremities ectromelia (two cases in 4 years and 1 case in 9 years old patient) are presented. The combination of symptoms of this rare malformation including the defects of the arm and forearm bones as well as aplasia of the radial rays of the wrist is described. Complex program for surgical treatment of ectromelia is suggested. The program includes the reconstruction of the arm length and formation of the shoulder using microsurgical transplantation of the fragment of the external border of the scapula, elimination of the forearm deformity by double-sided centering of the wrist, restoration of holding function using either the separation of one of triphalangeal fingers or transplantation of toes to the position of I radial ray. The results achieved in those three patients allowed to represent the new program as an alternative to the prosthetics.

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Odero, A., F. Chierichetti, E. Canidio et S. Savasta. « Aplasia of the Radial Artery ». Cardiovascular Surgery 1, n^o 3 (juin 1993) : 270–72. http://dx.doi.org/10.1177/096721099300100315.

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A 2-year-old girl with asymmetrical upper limbs and underdevelopment of the bones of the left forearm, wrist and hand with associated muscular and osteal hypoplasia is described. Doppler ultrasonography of the arterial trunks of the upper limb suggested a normal ulnar trunk in the left upper arm, an arterial vessel extending from the bend of the elbow to the distal third of the forearm, and the absence of any other arterial trunks in the radial region. Angiography confirmed that vascularization of the forearm was sustained by the ulnar artery, which supported the dorsal arch of the carpus and digital arteries arising from it. The interosseal artery was morphologically normal but there was aplasia of the radial artery. It is suggested that this malformation is the result of suppressed development of the vascular system of the left radial segment as other pathologies normally associated with the condition were absent.

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Oeckenpöhler, Simon, Martin Franz Langer et Oliver Riesenbeck. « Missed Essex-Lopresti Injury—Development of a Combined Proximal and Distal Radio-Ulnar Joint Prosthesis as a Treatment Option and Proof of Concept ». Healthcare 11, n^o 16 (11 août 2023) : 2274. http://dx.doi.org/10.3390/healthcare11162274.

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Essex-Lopresti injuries are characterized by injuries to the proximal radio-ulnar joint, the distal radio-ulnar joint, and the interosseous membrane. This can lead to osteoarthritis, impaction syndrome, or instability. If all three structures are injured and lead to instability, the situation is almost unmanageable and many times ends in a one-bone forearm. In this article, we demonstrate a new way to reconstruct the proximal and distal radio-ulnar joint with two patient-specific coupled prostheses. These have been developed with the biomechanical conditions of the forearm in mind, where there are very large forces between the bones. As a result, we are able to present a patient previously severely restricted in the use of his hand and arm via a splint that compressed the forearm, who is now able to perform everyday activities and even light sports, such as badminton, without pain.

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Zdun, Maciej, Katarzyna Szczepańska, Arkadiusz Grzeczka, Hieronim Frąckowiak, Bartosz Gapiński et Michał Wieczorowski. « Ultrasonography, Microcomputed Tomography, and Macroscopic Preparation in an Anatomical Study of the Thoracic Limb of the Golden-Headed Lion Tamarin (Leontopithecus chrysomelas) ». Applied Sciences 12, n^o 3 (19 janvier 2022) : 1031. http://dx.doi.org/10.3390/app12031031.

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The aim of this study was to evaluate the normal anatomy of the forearm of the golden-headed lion tamarin (Leontopithecus chrysomelas) using microcomputed tomography (micro-CT) and ultrasonography (US) and then compare the results with the results of a gross anatomy dissection of the forearm. The results of the US examination of the musculoskeletal system of the tamarin forearm were not satisfactory. US imaging enabled observation of the shape of the soft tissue and the size of muscle groups; however, we distinguished more muscles by traditional methods. In addition, in the dissection study, the assessment of the muscles was easier. Examination of the forearm bones using micro-CT provided a complete picture of the bones in this part of the body and was less time-consuming than traditional methods. Imaging allows the anatomy to be represented as a 3D image. However, some methods are not accurate; as in our study, US did not allow a complete assessment of the forearm musculature.

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Biswas, Atin, Kanchan Kumar Sabui, Anindya Basu et Prasun Mandal. « Comparative study of internal fixation of diaphyseal fractures of both bones of the forearm in adults between intramedullary nailing and plate osteosynthesis ». Asian Journal of Medical Sciences 14, n^o 2 (1 février 2023) : 183–87. http://dx.doi.org/10.3126/ajms.v14i2.48869.

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Background: Diaphyseal forearm fracture is one of the most commonly encountered fractures of the upper extremity. The literatures comparing the outcome of plate fixation and intramedullary nailing in adults are scarce and therefore the consensus on superiority of one over the other is lacking. This study was undertaken to compare the outcome of these operative techniques in adults with diaphyseal fracture of both bone forearm. Aims and Objectives: This study was undertaken to compare the outcome of plate fixation and intramedullary nailing in adults with diaphyseal fracture of both bone forearm. Materials and Methods: Patients of 18–70 years of age, with diaphyseal fractures of both bones of the forearm of <21 days old, were recruited. Patients were randomly allocated to two treatment groups: intramedullary nailing and plate osteosynthesis. Patients were followed up at 4th week, 12th week, and 24th week post-operative period. Functional outcome was measured at the end of 24th week based on the Clinical and Radiological parameters by Anderson et al., Score, Grace-Eversman Score, and Disabilities of the Arm, Shoulder and Hand (DASH) Score. Results: This study comprised of 40 cases (n=40) who completed the follow-up period of 24 weeks. Most of the patients treated with plate (80%) demonstrated excellent outcome as per Anderson et al., score while the outcome was unsatisfactory in 50% of those treated with nails. About 90% of the patients of plate group had excellent result in contrast to 50% in case of nail group following Grace Eversman criteria. Considering DASH score, the former group showed mostly excellent (40%) and good (45%) outcome while the latter exhibited mostly fair (55%) and good (30%) result. Conclusion: It may be stated that plate osteosynthesis is a better option in the treatment of diaphyseal fracture of both bones forearm in adults.

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Thèses sur le sujet "Arm and forearm bones"

Augoyard, Mathilde. « Covariation des tissus osseux et dentaires chez les humains modernes et tendances évolutives dans la lignée humaine ». Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0480.

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L’os cortical et la dentine sont deux tissus biologiques ayant des similarités dans leur architecture génétique, leur structure, leur composition et leur développement embryonnaire, qui ne sont pas partagées avec l'émail. Plusieurs observations permettent de suggérer l’existence d’un développement post-natal coordonné des deux tissus chez les hominines. Par exemple, les Néandertaliens présentent des volumes d'os cortical plus élevés dans leur squelette infra-crânien et une dentine plus robuste par rapport aux humains modernes, tandis que les volumes absolus d’émail sont similaires entre les deux taxons. L’étude des spécimens immatures néandertaliens montre que cette robustesse de l’os et de la dentine est déjà présente aux premiers stades du développement. Dans cette thèse, nous avons cherché à comprendre si les affinités structurelles et développementales entre l’os cortical et la dentine pouvaient induire un développement post-natal coordonné de ces deux tissus chez les humains modernes. Pour ce faire, nous avons mesuré la variation conjointe des volumes d’os cortical et de dentine dans un échantillon d’humains modernes, composé de 12 individus immatures et de 70 adultes. A partir d’acquisitions microtomographiques des os du bras, de l’avant-bras et de la denture antérieure maxillaire, nous avons mené une approche méthodologique combinant la quantification des volumes d'os cortical et de dentine avec l'analyse de leur distribution topographique. Nous mettons en évidence une désynchronisation entre le développement de l’os cortical et de la dentine pendant la croissance des individus immatures, se traduisant par une absence de covariation des volumes de tissus chez ces derniers. Une forte covariation os-dentine est observée chez les adultes, suggérant que le développement post-natal de ces deux tissus pourrait être influencé par des facteurs communs, une fois la maturation osseuse et dentaire achevée. Cette thèse montre notamment que le milieu hormonal joue un rôle prédominant dans le développement post-natal de ces tissus, tandis que l’histoire biomécanique du squelette semble avoir un impact plus limité sur leur développement. Une analyse préliminaire de la covariation os-dentine a été menée sur des individus chimériques de Paranthropus, d’Australopithecus et néandertaliens. La plupart des individus montrent une déviation par rapport à la relation os-dentine des humains modernes, caractérisée par des volumes de dentine plus élevés dans les taxons fossiles et des volumes d'os cortical similaires à ceux des humains modernes. Un ralentissement de la croissance et du développement a été décrit chez Homo sapiens par rapport aux hominines fossiles, pouvant expliquer la singularité de ce taxon dans cette relation os-dentine. Ce travail doctoral apporte une contribution originale à l’étude des volumes et de la distribution des tissus osseux et dentaires dans divers taxons hominines et offre une réflexion sur l’impact des facteurs génétiques, environnementaux et évolutifs agissant sur leur développement
Cortical bone and dentine are two biological tissues sharing a common genetic origin, overall structure, composition, and embryological development, distinct from those of enamel. Various observations suggest the possibility of coordinated postnatal development of these two tissues in hominins. For example, Neandertals display higher cortical bone volumes in their infra-cranial skeleton and greater dentine robustness compared to modern humans, while absolute enamel volumes are similar between the two taxa. Studies of immature Neandertal specimens indicate that their cortical bone and dentine robustness may be present from early developmental stages. In this doctoral research, we aimed to understand whether the structural and developmental affinities between cortical bone and dentine could lead to coordinated postnatal development of these tissues in modern humans. To this end, we measured the coordinated variation of cortical bone and dentine volumes in a sample of modern humans, comprising 12 immature individuals and 70 adults. Using microtomographic acquisitions of the arm, forearm bones, and anterior dentition, we conducted a methodological approach combining the quantification of cortical bone and dentine volumes with the analysis of their topographic distribution. Our results highlight a developmental desynchronization between cortical bone and dentine during the growth of immature individuals, leading to weak covariation between their cortical bone and dentine volumes. The bone-dentine covariation signal is stronger in adults, suggesting that common factors may influence postnatal development of these tissues once skeletal and dental maturation is achieved. This research highlights the predominant role of the hormonal milieu in the postnatal development of these tissues, while the biomechanical history of the skeleton appears to have a more limited impact. A preliminary analysis of bone-dentine covariation was conducted on chimeric individuals of Paranthropus, Australopithecus, and Neandertals. Most of these individuals deviate from the modern human bone-dentine relationship, characterized by higher dentine volumes in fossil taxa and cortical bone volumes similar to those of modern humans. A slowdown in growth and development has been described in Homo sapiens compared to fossil hominins, which may explain the unique bone-dentine relationship seen in this taxon. This doctoral thesis provides an original contribution to the study of bone and dental tissue volumes and distribution in various fossil and extant hominin taxa, offering insights into the impact of genetic, environmental, and evolutionary factors acting on their development

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Barrier, Isabelle Linda Odile. « Sex determination from the bones of the forearm in a modern South African sample ». Diss., 2008. http://upetd.up.ac.za/thesis/available/etd-08052008-090115.

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Dong, Jianhui. « Distributed biodynamic response analysis of the hand-arm system exposed to vibration along the forearm direction ». Thesis, 2007. http://spectrum.library.concordia.ca/975263/1/MR34590.pdf.

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Prolong and intensive exposure to hand-transmitted vibration could cause a series of disorders in the vascular, neurosensorial, and musculoskeletal structures, which have been collectively termed as hand-arm vibration syndrome (HAVS). From the review of literature, it is apparent that biodynamic response of the hand-arm system is one of the important foundations for understanding the causations of HAVS and for developing effective methods for exposure assessment. Although considerable efforts have been made to characterize the biodynamic responses of the hand-arm system and develop biodynamic models, only little knowledge exists on distribution of biodynamic response and power absorption for assessing health risks to the localized substructures. This dissertation research is concerned with development of an effective hand-arm vibration model that can predict distributed mechanical impedance and power absorption properties various substructures within the hand-arm system. This dissertation research proposes a new model structure that mimics the basic structures of the hand-arm system grasping a handle. The proposed model comprises two driving-points as opposed to the single driving-point invariably considered in the reported models. The model thus permits analyses of biodynamic forces developed on the fingers and palm-sides. The model parameters are identified based on the selected experimental data using a curving fitting method. The model structure revealed reasonably good agreements with the reported experimental data acquired under selected hand actions. The model also revealed very good agreements in terms of biodynamic responses distributed in the fingers and the palm in both the impedance magnitudes and phase. The model was applied to predict biodynamic responses of the human hand-arm system exposed to forearm direction of vibration. These were evaluated in terms of mechanical impedance, vibration transmissibility, dynamic force and power absorption. The basic characteristics of distributed biodynamic responses are analyzed to gain insight into relative health risks of vibration posed to various substructures of the hand-arm system. The results showed that the vibration power absorption (VPA) is mainly distributed in the forearm and shoulder structures under low frequency vibration. At higher frequencies, the vibration power is mostly absorbed in the tissues close to the hand-tool contact area, which can be associated with potential disorders of the fingers caused by operation of high frequency tools. This study also suggests that the distributed power absorption may be used as an alternative vibration measure for assessing various risks of the hand-transmitted vibration exposure.

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Chen, Hsin YI, et 陳馨怡. « The Effect of Low Load Forearm Muscles Training on Archery Performance and Strength of Bow Arm in Archers' ». Thesis, 2014. http://ndltd.ncl.edu.tw/handle/89263793429204157326.

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Cope, Janet M. « Musculoskeletal attachment site markers and skeletal pathology of the forearm and carpal bones from Tell Abraq, United Arab Emirates, c. 2300 BC ». 2007. https://scholarworks.umass.edu/dissertations/AAI3275763.

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Skeletal morphology and pathology are frequently used to support theories of activity patterns in prehistoric populations. In this study, the adult forearm (n = 307 radii and ulnae) and wrist bones (n = 500 scaphoid and lunate) from the Tell Abraq tomb, United Arab Emirates (ca. 2300 BC), were assessed for morphological variations and pathologies. Specifically, musculoskeletal attachment sites (MAS) were evaluated for indications of stress and articular surfaces were assessed for the presence of osteoarthritis (OA). OA was prevalent on the distal forearm bones (radius 40% and ulna 35%). Additionally, OA at the proximal ulna (73%) strongly correlated with (MAS) stress marker scores of elbow joint flexion (brachialis: rs = .323, p<.01) and extension (triceps: rs = .473, p<.01; anconeus: rs = .330, p<.01) as well as forearm rotation (supinator: r s = .373, p<.01; pronator teres: rs = 344, p<.01). The medial head of the triceps, anconeus and supinator muscles provide medial stability at the humeroulnar joint. Musculoskeletal attachment site stress indicators for the thumb were indicative of repeated or strained movements in extension and abduction and correlated strongly with proximal OA at the ulna (extensor pollicis longus: rs = .452, p<.01). Side did not correlate with OA, probable sex or any of the MAS stress markers. An unusual finding of an elevated transverse ridge was observed at the trochlear notch of the ulna. Presence of the transverse midtrochlear ridge (TTR) (58%) was positively correlated with proximal elbow joint OA (r s = .330, p<.01) and assigned sex (rs = .263, p<.01). Eighty-five percent of assessed radii had a depressed facet for the attachment site of the volar carpal ligament and 34% of the scaphoid bones had an exaggerated dorsal ridge for attachment of the dorsal carpal ligament of the wrist. The high levels of OA at the distal radius and proximal ulna in conjunction with the MAS data lend support to the theory that the individuals from the Tell Abraq tomb were engaged in regular heavy and repetitive bimanual activities with their upper extremities.

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Bezuidenhout, Sussanna Maria. « 'n Ergonomiese studie oor oorhoofse kraanoperateurs se werksomgewing en beroepsgesondheid ». Diss., 1999. http://hdl.handle.net/10500/18091.

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Text in Afrikaans
Summaries in English and Afrikaans
This study aims to investigate the relation between a crane operator in a slab handlingarea's experience of his/her work environment and occupational health. A study of the literature leads one to the conclusion that the nature of crane operators' work environment may cause health problems. According to the literature crane operators are high risk cases regarding musculoskeletal disorders. The empirical study affirms that there are risk factors present in the crane operator's work environment, which may influence his/her occupational health. It is statistically proven that there is a meaningful difference between crane operators with a negative experience of the work environment and crane operators with a positive experience of the work environment, and the amount of illnesses experienced by crane operators as well as their general health. Recommendations are made regarding training, adjustability and flexibility of the work station, job rotation, job expansion and enrichment, and social contact.
Die doel van die studie is om die verband tussen 'n kraanoperateur in 'n platblokhanteringsarea se ervaring van sy/haar werksomgewing en beroepsgesondheid te ondersoek. Die literatuurstudie lei tot die gevolgtrekking dat die aard van kraanoperateurs se werksomgewing aanleiding kan gee tot gesondheidsprobleme. Volgens die literatuur is kraanoperateurs hoerisikogevalle ten opsigte van spierskeletstelselbeserings. Die empiriese studie bevestig dat daar risikofaktore voorkom in die kraanoperateur se werksomgewing wat sy/haar beroepsgesondheid kan be"invloed. Statisties is bewys dat daar 'n betekenisvolle verskil is tussen kraanoperateurs met 'n negatiewe ervaring van die werksomgewing en kraanoperateurs met 'n positiewe ervaring van die werksomgewing en die hoeveelheid siektetoestande wat kraanoperateurs ervaar, en die algemene gesondheid van kraanoperateurs. Aanbevelings om risikofaktore te beheer word gemaak ten opsigte van opleiding, verstelbaarheid en buigbaarheid van die werkstasie, posrotasie, posverbreding en - verryking, en sosiale kontak.
Industrial Psychology
M. Com (Industrial Psychology)

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Livres sur le sujet "Arm and forearm bones"

M, Dines David, Lorich Dean G et Helfet David, dir. Solutions for complex upper extremity trauma. New York : Thieme, 2008.

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Vern, Putz-Anderson, dir. Cumulative trauma disorders : A manual for musculoskeletal diseases of the upper limbs. London : Taylor & Francis, 1988.

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Tendon transfers of the hand and forearm. Boston : Little, Brown, 1987.

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Hughes, Jim. Forearm and wrist. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198813170.003.0011.

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This chapter covers a selection of orthopaedic procedures involving the forearm and wrist, covering plating of the radius and ulna, and plating and/or K-wiring of the wrist. Each procedure includes images that demonstrate the position of the C-arm, patient, and surgical equipment with accompanying radiographs demonstrating the resulting images. The wrist is one of the most commonly injured regions of the body, as it is used with the hands to protect the body and head when falling. The forearm is more often injured in direct trauma, but any injuries to it may also affect the articulations at the wrist or elbow.

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Maximum speed of forearm flexion practice effects upon surface EMG signal characteristics. 1985.

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Ottis, Bob. Arm Anatomy Bones : How to Prepare for Arm Balances : Yoga Mat Companion. Independently Published, 2021.

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The relationship between finger flexion force production and selected hand, forearm and body physique measurements. 1987.

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Naqui, Zaf, et David Warwick. Bone and joint injuries of the wrist and forearm. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198757689.003.0004.

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The forearm is a complex quadrilateral structure linked by the proximal and distal radioulnar joints, ligaments, which include the interosseous membrane and triangular cartilage, and several obliquely orientated muscles. A displaced fracture or ligament rupture within this forearm is likely to involve other structures. Treatment requires anatomic recovery of stable function. The ulnar corner can sustain fractures or ligament ruptures which affect stable, pain-free, congruous forearm rotation. The distal radius may fracture after high- or low-energy trauma; anatomic reduction may not be essential in all; inaccuracy may lead to loss of rotation and ulnocarpal abutment but long-term arthritis is unusual. Children’s fractures are managed with consideration of remodeling potential. The scaphoid is vulnerable to non-union; plaster immobilization, early percutaneous fixation, and later bone-grafting all have roles. Salvage for osteoarthritic non-union may reduce pain but compromises function. Rupture of the carpal ligaments may cause substantial disruption and require complex reconstruction.

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Warwick, David, Roderick Dunn, Erman Melikyan et Jane Vadher. Bone and joint injuries—wrist and forearm. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199227235.003.0004.

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Bone and joint injuries—wrist and forearm 100Forearm fractures 102Ulnar corner injuries 106Fractures of the distal radius in adults 108Fractures of the distal radius in children 118Fractures of the scaphoid 120Fractures of the other carpal bones 127Carpal ligament rupture and dislocations ...

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Bone Tumor Surgery : Limb-Sparing Techniques. Lippincott Williams & Wilkins, 1988.

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Chapitres de livres sur le sujet "Arm and forearm bones"

van Oostwaard, Marsha, et Andréa Marques. « Osteoporosis and the Nature of Fragility Fracture : An Overview ». Dans Perspectives in Nursing Management and Care for Older Adults, 17–34. Cham : Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-33484-9_2.

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AbstractOsteoporosis is a common, chronic, systemic skeletal disease that is characterised by low bone mass and deterioration of the microarchitecture of bone tissue, with a consequent increase in bone fragility and risk of fracture. The number of people suffering from osteoporosis and high risk of fractures is increasing globally, probably as a result of global ageing and longer life expectancy.Typically, fractures in patients with osteoporosis occur at the following locations: vertebral (spine), proximal femur (hip), distal forearm (wrist) and proximal humerus (upper arm). Bone loss occurs silently and progressively without signs or symptoms until fractures occur, so patients are often unaware that they may have osteoporosis and are at risk of fractures.Osteoporosis is a devastating condition that can lead to pain, severe disability and premature death from fracture. Nurses, alongside other practitioners, play a key role in the prevention of osteoporosis and fragility fractures and can be envisaged in case finding, risk assessment and management and education after diagnosis. The aim of this chapter is to provide an overview of the link between osteoporosis and fractures and explore the diagnosis and treatment of osteoporosis.

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Gentili, Giuliano, et Mario Di Napoli. « Wrist, Lower Forearm, Upper Forearm, Elbow, Arm – Hand ». Dans The Ulnar Nerve, 215–18. Cham : Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-43292-2_32.

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Loizides, Alexander, Sebastian Schuhmayer et Bernhard Moriggl. « Upper Arm, Forearm and Hand ». Dans Sonographic Peripheral Nerve Topography, 55–109. Cham : Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-11033-8_3.

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Frisch, Herbert. « Elbow Joint, Upper Arm, and Forearm ». Dans Systematic Musculoskeletal Examination, 296–313. Berlin, Heidelberg : Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-75151-6_21.

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Waters, Michael, et Brian J. Harley. « Replantation of the Forearm or Arm ». Dans Extremity Replantation, 83–102. Boston, MA : Springer US, 2014. http://dx.doi.org/10.1007/978-1-4899-7516-4_7.

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He, Ziqiang, et Ke Jiang. « Meta Arm—VR Control Device for Forearm Amputees ». Dans Communications in Computer and Information Science, 17–22. Cham : Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-031-78531-3_3.

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Gentili, Giuliano, et Mario Di Napoli. « Wrist, Below Elbow, Above Elbow, Upper Arm – Hand ; Upper Arm, Above Elbow – Forearm ». Dans The Ulnar Nerve, 341–45. Cham : Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-43292-2_51.

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Tonaree, Warangkana, Hyunsuk Peter Suh et Joon Pio Hong. « Thin Free Flap for Resurfacing of the Arm and Forearm ». Dans Clinical Scenarios in Reconstructive Microsurgery, 593–601. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-23706-6_53.

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Tonaree, Warangkana, Hyunsuk Peter Suh et Joon Pio Hong. « Thin Free Flap for Resurfacing of the Arm and Forearm ». Dans Clinical Scenarios in Reconstructive Microsurgery, 1–9. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-319-94191-2_53-1.

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Tos, Pierluigi, Alessandro Crosio, Francesco Giacalone et Bruno Battiston. « Major Amputations at the Arm and Forearm Level : Replantation Strategy and Technique ». Dans Clinical Scenarios in Reconstructive Microsurgery, 603–14. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-23706-6_54.

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Actes de conférences sur le sujet "Arm and forearm bones"

Leung, Alan, Kirth Simmonds, Amit Bagchi et Peter Matic. « Surrogate Arm Modal and Transient Response Computational Analysis ». Dans ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-67609.

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Naval Research Laboratory has been developing measurement devices to study the dynamic response of the human body, commonly known as GelMan technologies in publications. This technology is currently being extended to upper extremity designs (GelMan-Upper Extremity, Figure 1a), consisting of upper arm and forearm with surrogate bones connected by a spherical joint and surrounded by generalized surrogate tissue. Computational low speed localized impact tests on the arm surrogate have been performed and compared to corresponding experiments. The outcome of this analysis can simulate the structural response of the arm, thus providing insight into preventing or mitigating injuries sustained from car accidents, sports and/ or battlefield injuries. A modal analysis and low speed impact transient analysis have also been performed on the arm surrogate constrained at the shoulder using the finite element program ABAQUS (Figure 1b). Linear elastic material properties from open literature are used for each arm component for the analysis using three dimensional, 8-noded hexahedral elements. Modes of vibration below 500 Hertz and strain-based frequency response have been obtained. A transient analysis of the arm is also being performed; von Mises stress contours, displacements and pressures inside the arm and total arm kinematics are extracted. These computational models have been validated with low speed, localized impact experiments using surrogate arm. Impacts of 10 N peak load are applied to upper arm and forearm of the surrogate model for 1 to 3 millisecond duration. Mode shapes of the arm are observed using a high speed camera and strain based frequency response curves are obtained. Experimental data (pressure and displacements) from transient test of the arm is compared to computational analysis. Agreement between the computational and experimental arm models provides a means for more advanced arm designs and loading situations.

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Canfield, Stephen L., Anthony J. Ganino, Robert J. Salerno et Charles F. Reinholtz. « Singularity and Dexterity Analysis of the Carpal Wrist ». Dans ASME 1996 Design Engineering Technical Conferences and Computers in Engineering Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-detc/mech-1156.

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Abstract This paper further explores the potential advantages of a symmetric, parallel-actuated pointing device known as the “Carpal wrist.” Much like its natural counterpart, the Carpal wrist has eight primary links, corresponding to the eight carpal bones of the human wrist, a parallel actuation scheme, similar to the flexor and extensor carpi muscles along the forearm, and an open interior passage, which forms a protected tunnel for routing hoses and electrical cables. The Carpal wrist also has the significant advantages of possessing closed form forward and inverse kinematic solutions and a large, dexterous workspace that is free of interior singularities (either considered separately or as part of a manipulator arm). As a result of its symmetric, parallel architecture, the wrist has a large payload capacity and can easily be adapted to a variety of actuation schemes. One embodiment of the Carpal wrist is shown in Fig. 1.

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Trotobas, Clément, Christine Azevedo et Andrew P. Murray. « The Kinematic Synthesis of a Spherical Mechanism for Assisting in Wrist Pronation and Supination ». Dans ASME 2023 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/detc2023-114766.

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Abstract Full use of the upper limb is necessary to carry out most tasks of daily life. Upper limb deficiencies, whether through complete or incomplete paralysis, inevitably lead to a loss of autonomy. Assistive orthoses are a potential method for restoring some autonomy. Pronation and supination, the turning of the wrist relative to the elbow, receives less focus than other joint movements in the arm. First, the utility of this degree-of-freedom in the arm is less obvious. Second, when compared to flexion and extension of the elbow, wrist prono-supination has no clear center of rotation due to the combined movement of the ulna and the radius bones as they cross and uncross in the forearm. This paper presents initial work in the design of a mechanism for a portable assistive orthosis that is expected to include powered prono-supination. The component proposed in this work is based on a spherical mechanism architecture. The capacity of these mechanisms to have a hollow center and to produce paths that follow arcs on spheres make them worth consideration in this application. A MATLAB optimization was used to perform path generation of a single spherical four-bar with the intent of replicating it three times to create the device proposed in this work. The concept was modeled in SOLIDWORKS and printed to gauge its potential.

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Gomez, D., et C. Druzgalski. « EMG controlled arm prototype forearm flexo-extension ». Dans 2012 Pan American Health Care Exchanges (PAHCE 2012). IEEE, 2012. http://dx.doi.org/10.1109/pahce.2012.6233456.

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Seo, Minsang, Hogyun Kim et Youngjin Choi. « Human mimetic forearm mechanism towards bionic arm ». Dans 2017 International Conference on Rehabilitation Robotics (ICORR). IEEE, 2017. http://dx.doi.org/10.1109/icorr.2017.8009408.

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Ruvalcaba, A., A. Altamirano, C. Toledo, R. Munoz, A. Vera et L. Leija. « Multichannel EMG acquisition system for arm and forearm signal detection ». Dans 2014 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). IEEE, 2014. http://dx.doi.org/10.1109/i2mtc.2014.6860907.

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Mangukiya, Yamik, Brij Purohit et Kiran George. « Electromyography(EMG) sensor controlled assistive orthotic robotic arm for forearm movement ». Dans 2017 IEEE Sensors Applications Symposium (SAS). IEEE, 2017. http://dx.doi.org/10.1109/sas.2017.7894065.

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Singh, Gaurav, Chenzhang Xiao, Girish Krishnan et Elizabeth Hsiao-Wecksler. « Design and Analysis of Soft Pneumatic Sleeve for Arm Orthosis ». Dans ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-59836.

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Patients that use crutches for ambulation experience forces as high as 50% of body weight and extreme extension angles at the wrist, which increases the risk of joint injury such as carpal tunnel syndrome. We have designed and fabricated a soft pneumatic sleeve to reduce the wrist loading by transferring part of the load to the forearm. The sleeve uses a Fiber Reinforced Elastomeric Enclosure (FREE). FREEs are soft pneumatic actuators that can generate force and moment upon inflation. We have used a contracting FREE, which is wrapped in a helical shape around the forearm as part of the sleeve. Upon actuation, it contracts in length and reduces in diameter, thereby generating a constricting force around the forearm. In this paper, we describe the modeling of the constricting force generated by the helical FREE. We can model the FREE as a string due to its negligible bending stiffness. The constriction force can be expressed in terms of the axial tensile force generated in the FREE upon actuation and the geometry of the helix. To obtain the axial force, we have used a model previously reported in literature that uses a constrained volume maximization formulation. We validate the string model by comparing with experimental results.

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Kamei, Yuhei, et Shima Okada. « Classification of forearm and finger motions using electromyogram and arm-shape-changes ». Dans 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2016. http://dx.doi.org/10.1109/embc.2016.7592016.

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Duan, Shanzhong (Shawn). « Modeling and Simulation of Shoulder-Humerus Complex via Multibody Dynamics for a Walking Elder Using a Cane ». Dans ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-67173.

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The shoulder is a very mobile joint. Because of the mobility, the shoulder is considered to have an inherent weakness. The joint consists of three major bones, the clavicle, scapula and humerus. These bones are more commonly called the collarbone, shoulder blade, and upper arm bone, respectively. Collectively, the shoulder is referred to as the scapula-humeral-clavicle complex. The joint between the humerus and scapula is a ball-socket joint. The joint between the scapula and acromial process allows for some movement but is primarily fixed. The ligaments, tendons, and muscles surround the shoulder to provide stability, movement, and limit the amount of rotation. In this paper, a multibody dynamics model of the shoulder-upper arm complex is presented. Three major bones clavicle, scapula, and Humerus in the shoulder-upper arm complex are represented by rigid bodies. The soft tissues such as tendons, ligaments, and muscles are modeled as springs and actuators respectively attached to the rigid bodies. The joints between the bones are expressed as ideal kinematic joints. Kane’s equations are then used to derive equations of motion of this multibody system. Based on the model, an elder who uses a cane with his or her shoulder-upper arm complex force to support his or her upper body weight during walking is analyzed. Commercial computer software is used to create the multibody shoulder-upper arm complex computational model and then carry out simulation. The model may be utilized in motion analysis of elderly people and sports medicine to study fatigue mechanism and prevent injuries of the shoulder-upper arm complex.

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