Literatura académica sobre el tema "Flatfoot"
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Artículos de revistas sobre el tema "Flatfoot"
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Chaiphrom, Nusorn, Chamnanni Rungprai y Nantaphon Chuvetsereporn. "Prevalence and effect of flatfoot among army privates". Journal of Southeast Asian Medical Research 1, n.º 2 (26 de diciembre de 2017): 70–73. http://dx.doi.org/10.55374/jseamed.v1i2.29.
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Background: Specific populations require strenuous activities such as soldiers, and flatfoot deformity can cause significant problems during training or operations. Prevalence of this deformity among Thai Army privates is limited and underestimated due to improper screening techniques. We would like to report the prevalence of flatfoot deformity using a new standardized device and compare performances of army privates between normal foot and flatfoot deformity Study design: The study employed a cross-sectional design Materials and Methods: A prospective study of 490 army privates in the King’s Guard, 2nd Cavalry Division, between June 2015 and November 2015 was conducted. Footprints were collected from all participant using a Harris Mat imprinter and the shape of their feet was recorded based on arch height. The Stahili index >0.77 (NY index) and arch height less than 6 mm were used as cut-off point values to diagnose flatfoot deformity. Additionally, military training performance (running 2 km) was evaluated using validated functional outcome (VAS-FA) and compared between normal arch and flatfoot deformity groups. Results: The prevalence of flatfoot deformity determined using footprints was 52.5% (233 participants: 111 of 233 participants were unilateral (47.6%) and 146 of 233 participants (52.3%) were bilateral flatfeet). The physical training revealed significant differences when compared between bilateral flatfeet and normal arch groups (p= 0.038) and bilateral flatfeet unilateral flatfoot groups (p= 0.009) BMI, VAS score and flatfoot deformity significantly affected the performances of their training (p= 0.03, 0.02, and 0.03 for BMI, VAS score and flatfoot deformity, respectively.) Conclusion: The prevalence of flatfeet deformity among army privates from this study was higher than relates studies. Bilateral flatfeet deformity had a significant effect on physical training. Although many factors affect training performance, BMI, VAS score and flatfoot deformity significantly affected the military training program.
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Lee, Woo-Chun, Chihoon Ahn, Ji-Beom Kim y Mu Hyun Kim. "Dynamic Pedobarography Shows Pain Avoidance Gait of Symptomatic Severe Flatfoot Patient". Foot & Ankle Orthopaedics 3, n.º 2 (19 de abril de 2018): 2473011418S0001. http://dx.doi.org/10.1177/2473011418s00010.
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Category: Basic Sciences/Biologics, Midfoot/Forefoot Introduction/Purpose: In the flatfoot patients, collapsed medial longitudinal arch during gait induced pain and it results decreased center of progression excursion index(CPEI) in dynamic pedobarography. Although the CPEI decreased is pathologic gait of flatfoot patients, range of the CPEIs is wide even in similar severity of flatfoot patients. We hypothesized that some flatfoot patients inverted forefoot or elevated first metatarsal head during gait for avoiding the pain from collapsed medial longitudinal arch, which resulted wide range of the CPEIs in flatfoot patients. The purposes of this study were to investigate the incidence of forefoot inversion and 1st metatarsal head elevation during gait in severe symptomatic flatfoot patients, and to confirm whether forefoot inversion and 1st metatarsal head elevation increases the CPEI, by using the dynamic pedobarography. Methods: We retrospectively evaluated patients who underwent surgery for flatfoot in our clinic from January, 2017 to May, 2017. Before surgery, all patients underwent plain weight-bearing radiographs and dynamic pedobarography by using in-shoe plantar pressure assessment system (Tekscan, Inc., South Boston, MA). Radiographic parameters, talonavicular coverage angle, Meary angle and moment arm, and the CPEI in dynamic pedobarogrpahy were measured. The forefoot inversion and the 1st metatarsal head elevation were defined when sum of 3rd-4th and 5th submetatarsal plantar pressure was higher than sum of 1st and 2nd submetatarsal plantar pressure, and when 2nd submetatarsal plantar pressure was higher than 1st submetatarsal plantar pressure, respectively. Correlations between the radiographic parameters and the CPEI were investigated. Incidence of the forefoot inversion and the 1st metatarsal head elevation was investigated. The CPEIs in flatfeet with forefoot inversion or 1st metatarsal head elevation were compared with those in flatfeet without these pain avoidance gait. Results: Twenty-eight flatfeet from 28 patients were included in the present study. The average age of patients was 42.3 years (range: 19-71). Means of the three radiographic parameters and the CPEI of the 28 flatfeet were listed at table.1. There was no significant correlation between the CPEI and the three radiographic parameters.(Table.2) The incidence of forefoot inversion and 1st metatarsal head elevation were 11%(3 feet), 54%(15 feet) respectively. The mean CPEI of the flatfeet with forefoot inversion or 1st metatarsal head elevation was 8(range: -10 – 18), and the mean CPEI of the flatfeet without these two compensations was 5 (range: -3 – 12). The CPEI in the flatfeet with the two compensations was significant larger than that of the flatfeet without the two compensations. (P=0.027) Conclusion: In the present study, forefoot inversion or 1st metatarsal head elevation were happened in 65% of symptomatic flatfoot patients. These two pain avoidance gait shifts weight-bearing load laterally, which decreases collapsing medial longitudinal arch and pain on the flatfoot. Because lateral shifting of weight-bearing load increases the CPEI, flatfoot patients with these two gaits showed high the CPEI. Therefore, the degree of the CPEIs are various even in similar severity of flatfoot and are not correlated with the severity of the flatfoot. Clinicians should consider these pain avoidance gait of flatfoot patients when they interpret a dynamic pedobarography of flatfoot.
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Vergillos Luna, Manuel, Adyb-Adrian Khal, Kara A. Milliken, Federico Solla y Virginie Rampal. "Pediatric Flatfoot: Is There a Need for Surgical Referral?" Journal of Clinical Medicine 12, n.º 11 (1 de junio de 2023): 3809. http://dx.doi.org/10.3390/jcm12113809.
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Pediatric foot deformities are a common finding, concerning up to 44% of preschool aged children. The absence of accepted international guidelines, as well as heterogeneity in definitions and measurements, makes management of pediatric flatfoot a challenge, and decisions surrounding specialized care referral confusing and biased. The objective of this narrative review is to provide guidance to primary care physicians treating these patients. A non-systematic review of the literature regarding the development, etiology, and clinical and radiographic assessment of flatfeet using the PubMed and Cochrane Library databases was performed. The exclusion criteria for the review were adult populations, papers detailing the outcome of a specific surgical procedure, and publications prior to 2001. The included articles showed great heterogeneity in definition and proposed management, which makes the study of pediatric flatfoot challenging. Flatfoot is a common finding in children under 10 years old, and should not be considered pathological unless stiffness or functional limitation are present. Surgical referral should be reserved to children with stiff or painful flatfoot, while simple observation is indicated for flexible, asymptomatic flatfeet.
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Ponnapula, Priya. "A Cross-disciplinary Approach to Understanding Flatfoot". Journal of the American Podiatric Medical Association 102, n.º 4 (1 de julio de 2012): 319–23. http://dx.doi.org/10.7547/1020319.
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As form follows function, pedal anatomy is embedded in a history of evolution. This literature review seeks to further the understanding of physiologic and pathologic flatfoot through cross-disciplinary research of expired and extant members of the Homininae subfamily. Archaeological, anthropological, paleontological, and ontogenetic evidence presents multiple biomechanical similarities and anatomical parallels between flatfooted hominins and humans. Recognizing an evolutionary pattern in flatfoot pathologic disorders enhances anticipation and effective treatment. (J Am Podiatr Med Assoc 102(4): 319–323, 2012)
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Cheney, Nicholas, Kyle Rockwell, Joseph Long, John Weis, Dylan Lewis, Timothy Law y Adam Carr. "Is a Flatfoot Associated with a Hallux Valgus Deformity?" Foot & Ankle Orthopaedics 2, n.º 3 (1 de septiembre de 2017): 2473011417S0001. http://dx.doi.org/10.1177/2473011417s000133.
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Category: Bunion Introduction/Purpose: An arch collapse model has been described for a multitude of foot and ankle problems that is based on a gastrocnemius equinus contracture producing a predictable collapse that has been described in five distinct phases. Previous studies have evaluated the presence of pes planovlagus in hallux valgus patients and concluded that this is a rare occurance. The Grand Rapids arch collapse model reviews adult foot pathology and believes there is a link between bunions and flatfeet. We wanted to evaluate patients with flatfeet and determine if they had an associated bunion deformity. Based upon the arch collapse model, there should be a significant number of flatfeet with an associated bunion deformity and our goal was to see if this proved to be true. Methods: We retrospectively reviewed the radiographs of patients diagnosed with a flatfoot based upon their ICD 9 and 10 codes in the senior author’s practice. For each patient, we used standard anteroposterior and lateral foot radiographs obtained on all new patients. Initially, we had 254 feet but had to exclude 93 feet due to inadequate radiographs, normal radiographs (normal meary’s angle and talonavicular coverage angle) or in patients who already had surgical procedures to the foot. This left 161 feet radiographs for review. We then measured the Meary’s angle on the lateral images and the talonavicular coverage angle, hallux valgus angle, intermetatarsal angle and sesamoid position on the anteroposterior radiographs. Results: Of the 161 feet that remained in the study, only 6 feet (3.7%) had no radiographic evidence of a bunion based upon sesamoid position, hallux valgus angle or the intermetatarsal angle. We did find a correlation with the severity of the flatfoot based upon the Meary’s angle and the talonavicular coverage angle with the severity of the bunion deformity defined by the sesamoid position, hallux valgus angle and the intermetatarsal angle. As the flatfoot got worse, the bunion did so as well. Conclusion: Our findings would seem to fit with the Grand Rapids arch collapse model. The hypermobility of the first ray that creates the bunion deformity then allows the arch to ultimately collapse. It also does not seem to contradict what has been found previously. Earlier studies showed a low association between patients with bunions who also had flatfeet. This would make sense as the deformity may not have progressed to the flatfoot yet. However, in our study the deformity has already progressed to a flatfoot and almost all have some radiographic evidence of a bunion.
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Payehdar, Somaieh, Hassan Saeedi, Amir Ahmadi, Mohammad Kamali, Maryam Mohammadi y Vahid Abdollah. "Comparing the immediate effects of UCBL and modified foot orthoses on postural sway in people with flexible flatfoot". Prosthetics and Orthotics International 40, n.º 1 (18 de junio de 2014): 117–22. http://dx.doi.org/10.1177/0309364614538091.
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Background: Different types of foot orthoses have been prescribed for patients with flatfoot. Results of several studies have shown that orthoses were able to change balance parameters in people with flatfoot. However, the possible effect of orthosis flexibility on balance has not yet been investigated. Objectives: The aim of the current study was to investigate the immediate effect of a rigid University of California Berkeley Laboratory (UCBL) foot orthosis, a modified foot orthosis, and a normal shoe on the postural sway of people with flexible flatfoot. Study design: Quasi-experimental. Methods: In all, 20 young adults with flatfoot (aged 23.5 ± 2.8 years) were invited to participate in this study. The Biodex Stability System was employed to perform standing balance tests under three testing conditions, namely, shoe only, UCBL, and modified foot orthosis. Total, medial–lateral, and anterior–posterior sway were evaluated for each condition. Results: The results of this study revealed no statistical difference in the medial–lateral and anterior–posterior stability indices between foot orthoses and shoed conditions. The overall stability index with the UCBL foot orthosis, however, was significantly lower than that with the modified foot orthosis. Conclusion: The UCBL foot orthosis was able to decrease total sway and improve balance in people with flexible flatfoot. Clinical relevance Results of previous studies have indicated that foot orthoses were able to affect the balance of people with flatfeet. However, the possible effects of flexible orthoses on balance have not been examined. The results of this study may provide new insight into material selection for those people with balance disorders.
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Shin, Hyucksoo, Dong Yeon Lee, Jae Hee Lee y Hyo Jeong Yoo. "Foot Gait Analysis In Old Female Patients with Acquired Adult Flatfoot". Foot & Ankle Orthopaedics 3, n.º 3 (1 de julio de 2018): 2473011418S0044. http://dx.doi.org/10.1177/2473011418s00445.
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Category: Midfoot/Forefoot Introduction/Purpose: Acquired adult flatfoot is thought to be caused by a loss of the dynamic and static supportive structure of the medial longitudinal arch. Current evaluation systems mostly rely on static measurements such as standing x-ray, CT and MRI. Recently, the gait analysis has been suggested to be a good tool for assessment of functional impairment. Although there are some previous investigations about gait of flatfoot, there was a limitation in control groups in terms of matching age and gender. The objective of this study was to find the effect of the acquired adult flatfoot on the segmental motion of the foot during gait by comparisons with age and gender controlled healthy adults. Methods: 20 symptomatic flatfeet (12 female patients, 51–80 years old) and 50 symptom-free normal feet (50 female participants, 60-69 years old) were included in this study. For radiographic examinations, meary angle, calcaneal pitch, talo-calcaneal angle, tibio-calcaneal angle was measured using standing lateral radiograph of the foot. And talonavicular coverage angle was measured using standing anteroposterior radiograph of the foot. For foot gait analysis, the temporal gait parameters such as cadence, speed, stride length, step width, step time were calculated. Segmental foot kinematics evaluated using a 3D MFM of a 15-marker set (Foot3D model). Inter-segmental angles (ISA) (hindfoot relative to tibia, forefoot to hindfoot, and hallux to forefoot) were calculated at each time points (100 time points for whole gait cycle). The ISAs (position) at specific phases of gait cycle, the change of ISA (motion) between phases and range of ISAs during the whole gait cycle were calculated and compared between groups. Results: Range of motion (ROM) of sagittal and transverse plane of hindfoot, and transverse plane of forefoot was lower in flatfoot group. ROM of coronal plane of hallux and sagittal plane of forefoot was higher in flatfoot group. There also are significantly different findings in flatfoot group such as more dorsiflexed position of forefoot segment, reduced forefoot abduction motion during terminal stance and loss of push off during preswing phase. In addition, the time of push off phase in flatfoot group occurred later than the control group. In other words, lag of stance phase occurred in flatfoot group (Figure 1). This tendency became even worse when the moderate group and the severe group were compared based on the -20 ° of meary angle. Conclusion: As shown in the gait analysis, the overall reduction in hindfoot ROM and the increase in forefoot ROM in the flatfoot group suggest a midfoot breakage, which shows a decrease in push off power and a lag in the stance phase. So, the results of this study suggest that altered segmental motion of the foot in acquired adult flatfoot patients with PTTD, which shows progressive deterioration according to severity. And we think that gait analysis can be used as an objective functional measurement system for evaluation of acquired adult flatfoot patients.
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Alabdulkareem, Abdulrahman I., Yasser I. Alkhalife, Abdulaziz M. Bayounis, Abdullah A. B. Shabib, Waleed A. Alrogy, Fares H. Al-Jahdali y Samir O. Alsayegh. "Bilateral talocalcaneal tarsal coalition with flatfeet treated with single-stage coalition resection and calcaneal lengthening osteotomy: A case report". Journal of Musculoskeletal Surgery and Research 6 (16 de noviembre de 2022): 294–98. http://dx.doi.org/10.25259/jmsr_109_2022.
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A coalition is a bridge connecting osseous structures. Tarsal coalitions typically involve talocalcaneal and calcaneonavicular joints. As a result, patients might present with pain and/or rigid flatfoot deformity. We outline a case of bilateral middle facets talocalcaneal tarsal coalition with rigid flatfeet who was treated with resection combined with flatfoot reconstruction. the patient was an 11-year-old Saudi girl who had progressive bilateral flatfoot for which non-operative treatment failed. A single-stage middle facet talocalcaneal coalition resection with concomitant Evans calcaneal lengthening osteotomy and gastrocnemius recession was performed. Postoperatively, the American Orthopaedic Foot and Ankle Society (AOFAS) ankle midfoot score was measured, and the patient had a score of 90/100. The outcome was satisfactory, and the other foot was operated on 6 months later, with the same procedure and outcome (AOFAS: 90/100). Six years of follow-up showed no recurrence and a satisfactory lifestyle with no activity limitation. We aimed to highlight the AOFAS score 6 years after resecting the coalitions while reconstructing the foot in a single-staged procedure.
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Panaet, Elena Adelina, Anna Zwierzchowska, Leonardo Alexandre Peyré-Tartaruga, Dan Iulian Alexe, Barbara Rosołek y Cristina Ioana Alexe. "Distribution of plantar pressures under static conditions, in various areas of the pediatric flatfoot in sensitive period of development – pilot study". Balneo and PRM Research Journal 14, Vol.14, no. 4 (20 de diciembre de 2023): 607. http://dx.doi.org/10.12680/balneo.2023.607.
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Background: Flatfoot can alter the foot's ability to uniformly distribute the body weight on the plantar areas, possibly leading to biomechanical imbalances in the entire body. The purpose of the study was to determine the correlation between flatfoot and plantar pressure distribution in static conditions. (2) Material and methods: The study included a group of 23 children with flat feet (7.43±0.58 years old), which analyzed the correlations between the Foot Posture Index 6 (FPI 6) values and the plantar pressure distribution values. The instruments used were the Foot Posture Index 6 (FPI 6- a quantitative anatomical assessment under static conditions) and the Podata (device for recording images in real time of the body weight distribution on the plantar support). (3) Results: The statistical results have indicated significant correlations of strong intensity between the flat foot and the plantar pressure distribution in the midfoot, but also that the flatfoot significantly influences the values of the plantar pressure distribution in the midfoot. (4) Conclusion: The data showed that flatfeet influence the values of the plantar pressure distribution in the mid-area of the sole.
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Sun, Chengyi, Shuyuan Li, Mingjie Zhu, Fahim Choudhury, Mark S. Myerson y Ming-Zhu Zhang. "Three-Dimensional Measurements of the Sinus Tarsi and Tarsal Canal in Pediatric Flexible Flatfeet using Weightbearing CT Scans". Foot & Ankle Orthopaedics 7, n.º 4 (octubre de 2022): 2473011421S0095. http://dx.doi.org/10.1177/2473011421s00959.
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Category: Hindfoot; Other Introduction/Purpose: When the hindfoot is in varus the tarsal canal becomes visible on a lateral Xray (XR) and has been referred to as a 'target sign'. However, the sinus tarsi (ST) and tarsal canal (TC) are not easily visible radiographically when associated with a flatfoot. The dimensions of both the ST and TC in normal and flatfeet are unknown, but if understood, could help with the design and implantation of an arthroereisis, a commonly performed procedure for correction of pediatric flatfoot deformity. Knowing the size of the TC will also reduce postoperative complications of arthroereisis such as stiffness, resulting from too large an implant. The aim of this study was to take three-dimensional (3D) measurements of the TC in pediatric flatfeet under weightbearing (WB) conditions. Methods: This was a prospective IRB approved study in pediatric patients with flexible flatfeet and asymptomatic children without flatfeet who were reviewed and analyzed. Using 3D computer-aided design (CAD) models from weightbearing CT (WBCT) scans, the following parameters were measured: the widest diameter of the posteromedial tarsal canal (WDPTC), the narrowest supero- inferior diameter of the tarsal canal (NSDTC), the length of the tarsal sinus, (LTS), the length of the tarsal canal (LTC) and the tarsal sinus and canal volume (TSCV). Correlations between patient age, Meary's angle, foot and ankle offset (FAO), and each of the above measured parameters were investigated. Both weight bearing and non-weight bearing CT scans were used for study to investigate the effect of bearing weight on the above-mentioned parameters. (Figures 1, 2). Results: Twenty-two children with flexible flatfeet (age range 9-14) and fourteen children with no foot deformity (age 9-15) were included for study. With the WBCT the TSCV decreased by 20% in comparison with non-weightbearing evaluation. The TSCV, the widest diameter of the anterolateral tarsal sinus (WDATS) and LTC decreased in flatfeet both under WB and NWB conditions compared with the control group. A positive linear correlation was found between the TSCV and patient age (r = 0.7307, P < 0.0001), while negative linear correlations were found between the TSCV and FAO (r = -0.5188, P < 0.0001) and Meary's angle (r = -0.3132, P = 0.0019). The tarsal sinus and tarsal canal volume significantly decreased in the flatfoot group during weight bearing, while the volume of the tarsal canal remained unchanged. Older age was not associated with either a wider tarsal canal or its orientation. Conclusion: Although the tarsal sinus and canal volume was positively associated with patient age, there was a negative correlation with both the FAO and Meary's angle. These findings may be very relevant in future study of the subtalar joint in both children and adults, and clearly have an implication for treatment of the pediatric flatfoot with arthroereisis.
Tesis sobre el tema "Flatfoot"
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Twomey, Dara Safety Science Faculty of Science UNSW. "Performance differences between normal and low arched feet in 9 - 12 year old children". Awarded by:University of New South Wales. School of Safety Science, 2006. http://handle.unsw.edu.au/1959.4/24344.
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In the past people were excluded from military service and many children suffered under the stigma of having flat feet. Flat feet have been a very popular area of research for years, yet many unresolved issues still exist. There appears to be no universally accepted definition of normal arch height within the general population, which leads to difficulty in identifying and classifying flat feet. A reduced arch appears to have an effect on human movement but the extent of this in dynamic movement remains undefined. The primary aim of this project was to investigate if there were differences in performance of basic gross motor skills between normal and low arched feet in 9 ??? 12 year old children. The principal measurement technique proposed was more accurate than previous studies and permitted an in-depth analysis of the foot in dynamic situations. This three-dimensional foot analysis facilitated a greater understanding of the biomechanics of the foot. The research was undertaken in three phases. The initial phase classified approximately one hundred children???s feet for inclusion in the subsequent phases. Static footprints and dynamic arch height measurement were recorded. The second phase comprised of three-dimensional foot analysis, and basic functional tasks including, jumping, balancing, and hopping undertaken with thirty children; fifteen low and fifteen normal arched. An additional twenty-four children participated in the third and final phase, which included a lower limb gait analysis with strength and proprioception tests in addition to the tests in phase two. Kinematically the low arched foot had a significantly lower medial arch angle and a reduced forefoot pronation angle throughout the gait cycle. This research also found that they had a more externally rotated hip particularly during the stance phase of gait. Functionally there were remarkably few differences between the two groups. The low arched group had significantly reduced performance in lateral hopping. However they showed stronger plantar flexion strength, and performed better in the vertical jumping task. It can be concluded from this research that there is no major disadvantage to performance of gross motor skills for the children in this project with low arched asymptomatic feet.
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Kerr, Catriona Mairi. "Paediatric flexible flatfoot : a new stance : beyond static assessment". Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:16d2b912-9dcd-4d46-af2c-edad475b73ea.
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Flatfoot is often asymptomatic but sometimes presents with symptoms, even in children. This thesis aimed to discover if there was a difference between children with and without symptoms, in the hope that this might aid treatment decisions. Firstly, an audit was performed to discover the prevalence and type of symptoms, as well as current treatment protocols. Secondly, 107 volunteers from the general population and 20 patients were assessed in more detail. The participants were divided into groups and ANOVA tests were used to find the significant differences. Pain and parental concern were frequently reported in the audit population. The majority of this population had moderate bilateral flexible flatfoot with an active Windlass mechanism and static heel valgus. Treatment was dependent on department. The symptomatic group displayed reduced passive ankle dorsiflexion indicating tightness of the tendo-Achilles, as well as increased frequency of severe knee hyperextension and knee valgus upon clinical examination. During static stance, three differences were found between symptomatic and asymptomatic groups, two differences between flat feet and neutral feet. During dynamic trials, the symptomatic group showed reduced stride length and percentage time spent in swing. The ground reaction profiles showed differences in early and late stance. Further investigation supported the idea that decreased late stance vertical ground reaction force peak was evidence of instability in the symptomatic group. Four kinematic parameters demonstrated significant differences at foot strike, five at midstance, and seven at foot off. In terms of kinetics, after controlling for relative stride length, four differences were found, but none between the asymptomatic and symptomatic flat feet. Plantar pressure was successfully used to estimate truncated foot length. The flat feet did not display increased peak midfoot pressure; it was actually lower in flat footed groups. Arch Index and Modified Arch Index were successfully used for instantaneous and continuous assessment of foot posture over stance. The differences found between symptomatic and asymptomatic flat feet (particularly at foot off) shed some light upon the potential causes of symptoms.
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Williams, Lindsey Leigh y Lindsey Leigh Williams. "A Finite Element Model of a Realistic Foot and Ankle for Flatfoot Analysis". Thesis, The University of Arizona, 2017. http://hdl.handle.net/10150/626145.
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Adult-Acquired Flatfoot is a degenerative condition in which the ligaments and tendons supporting the arch deteriorate eventually leading to arch collapse. This deterioration can occur at various locations along the arch creating a number of different patterns of collapse. Surgical treatment for adult acquired flatfoot consists of a combination of various osteotomies. Although general guidelines exist, there is no systematic way to determine which combination of osteotomies should be used to correct a given foot deformity. Computer simulation with finite element analysis might provide an analytical tool to optimize the choice of osteotomy location and size. By dividing a complex problem into simpler components, finite element analysis allows for the solution of complex problems by solving a large set of simple equations.
Finite element analysis has previously been used to study effects of diabetes, shoe design, and gait analysis in the foot. These studies have oversimplified geometry and material properties of foot tissues which limits the true mechanical behavior. The goal of this study was to create an anatomically and physiologically correct finite element model of the foot and ankle.
To create a healthy foot model, CT scans were collected from one cadaver foot to create a three-dimensional cortical bone model in 3D Slicer software. The cortical bone model was imported into SolidWorks to create the geometry for trabecular bone, cartilage, ligaments, and tendons. Journal articles, textbooks, and other resources were used in order to create realistic cartilage, ligament, and tendon models (Netter & Colacino, 1997; see also Boss & Hintermann, 2002; Campbell et al., Apr. 2014; Golanó et al., 2010; Mahadevan). Final approval of the model’s geometry was obtained from the orthopaedic surgeon supervising this study. After completing the anatomically correct geometry of the foot, it was imported into finite element software (ANSYS, http://www.ansys.com/). The model was meshed with solid elements only: tetrahedral elements for the foot and hexahedral elements for the ground support. Linear elastic material properties were assigned to all bodies. Boundary conditions and contacts were created including a fixed ground support and bonded and frictionless contacts. A body weight force was applied to the tibia and tendon forces were applied to simulate loading during midstance.
The frictionless contacts created a nonlinear problem that caused the simulation to fail to converge to a solution. Abnormally high stresses and deformation were found in the results. The foot model failed to converge to realistic results because of the current model’s complexity.
An anatomically correct foot model was successfully created, but simplifications need to be made to the model in the future for convergence. Recommendations for simplification include modeling ligaments as truss elements, adding spring elements to tendons, and adding soft tissue or fat pads to the model. After simplifications are completed and realistic results are obtained, Flatfoot conditions and surgeries can be simulated and analyzed.
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Žygienė, Vilija. "Ilgalaikių kineziterapinių procedūrų efektyvumas koreguojant ikimokyklinio amžiaus vaikų plokščiapadystę, plokščiapadystės sąsajos su laikysena". Master's thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050517_095244-40729.
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Flatfoot is one of the most common conditions seen in pediatric podiatry practice. Flatfoot is a term used to describe a recognizable clinical deformity created by malalignment at several adjacent joints. Clinically, a flatfoot is one that has a low or absent longitudinal arch. There enough many studies designed to assess the flatfoot and body posture of young schoolchildren but it is difficult to find out the data concerning the preschool children.
The purpose of this study was to investigate the efficiency of long-term exercise training procedures designed for the treatment of flatfoot of pre-school children and influence of flatfoot to posture. Subject in this study was 61 pre-school children. To 32 of them was set the diagnosis of flatfoot and during three years the exercise training procedures was applied. The results obtained during the study has showed that for 44 percent of these children has not any deformations of foots, so the designed exercise training procedures were effective. The other task of this study was to assess the influence of flatfoot to posture. Children who has a foot deformations has more frequent postural problems in comparison to healthy foot children. The higher influence to body posture has a asymmetry in flatfoot than the degree or value of flatfoot. On the other hand the employed computer program “Autocad” was suitable for evaluation of postural peculiarities of children and allowed to perform a precise measurements and analysis of obtained... [to full text]
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Spratley, Edward Meade. "Patient-Specific Modeling Of Adult Acquired Flatfoot Deformity Before And After Surgery". VCU Scholars Compass, 2013. http://scholarscompass.vcu.edu/etd/3278.
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The use of computational modeling is an increasingly commonplace technique for the investigation of biomechanics in intact and pathological musculoskeletal systems. Moreover, given the robust and repeatable nature of computer simulation and the prevalence of software techniques for accurate 3-D reconstructions of tissues, the predictive power of these models has increased dramatically. However, there are no patient-specific kinematic models whose function is dictated solely by physiologic soft-tissue constraints, articular shape and contact, and without idealized joint approximations. Moreover, very few models have attempted to predict surgical effects combined with postoperative validation of those predictions. Given this, it is not surprising that the area of foot/ankle modeling has been especially underserved. Thus, we chose to investigate the pre- and postoperative kinematics of Adult Acquired Flatfoot Deformity (AAFD) across a cohort of clinically diagnosed sufferers. AAFD was chosen as it is a chronic and degenerative disease wherein degradation of soft-tissue supporters of the medial arch eventually cause gross malalignment in the mid- and hindfoot, along with significant pain and dysfunction. Also, while planar radiographs are still used to diagnose and stage the disease, it is widely acknowledged that these 2-D measures fail to fully describe the 3-D nature of AAFD. Thus, a population of six patient-specific rigid-body computational models was developed using the commercially available software packages Mimics® and SolidWorks® in order to investigate foot function in patients with diagnosed Stage IIb AAFD. Each model was created from patient-specific sub-millimeter MRI scans, loaded with body weight, individualized muscle forces, and ligament forces, in single leg stance. The predicted model kinematics were validated pre- and postoperatively using clinically utilized radiographic angle distance measures as well as plantar force distributions. The models were then further exploited to predict additional biomechanical parameters such as articular contact force and soft-tissue strain, as well as the effect of hypothetical surgical interventions. Subsequently, kinematic simulations demonstrated that the models were able to accurately predict foot/ankle motion in agreement with their respective patients. Additionally, changes in joint contact force and ligament strain observed across surgical states further elucidate the complex biomechanical underpinnings of foot and ankle function.
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Matheis, Erika. "Plantar Measurements to Determine Success of Surgical Correction of Stage IIb Adult Acquired Flatfoot Deformity". VCU Scholars Compass, 2012. http://scholarscompass.vcu.edu/etd/2943.
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Adult Acquired Flatfoot Deformity (AAFD) is a progressive disease characterized by mechanical degeneration of the soft tissue structure in the arch of the foot that leads to changes in joint alignment. Surgical intervention commonly via tendon transfer and bony osteotomy is used to restore arch architecture, however there is a lack of quantitative assessments that measure the success of the surgical correction in vivo. Using plantar pressures via Tekscan® HR Mat and surveys (SF-36, FAOS), pre-operative and post-operative measures for six participants were defined, analyzed and compared. A paired t-test showed significant lateral shift for percent body weight during walking postoperativelyin the forefoot and midfoot regions. However, arch index measurement showed no significant change. The FAOS survey score also improved statistically postoperatively. The surgical correction was successful as deemed by some of these quantitative and qualitative measures.
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Smith, Brian A. "Computational Modeling to Assess Surgical Procedures for the Treatment of Adult Acquired Flatfoot Deformity". VCU Scholars Compass, 2015. http://scholarscompass.vcu.edu/etd/4019.
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Several surgically corrective procedures are considered to treat Adult Acquired Flatfoot Deformity (AAFD) patients, relieve pain, and restore function. Procedure selection is based on best practices and surgeon preference. Recent research created patient specific models of Adult Acquired Flatfoot Deformity (AAFD) to explore their predictive capabilities and examine effectiveness of the surgical procedure used to treat the deformity. The models’ behavior was governed solely by patient bodyweight, soft tissue constraints, and joint contact without the assumption of idealized joints. The current work expanded those models to determine if an alternate procedure would be more effective for the individual. These procedures included one hindfoot procedure, the Medializing Calcaneal Osteotomy (MCO), and one of three lateral column procedures: Evans osteotomy, Calcaneocuboid Distraction Arthrodesis (CCDA), Z osteotomy and the combination procedures MCO & Evans osteotomy, MCO & CCDA, and MCO & Z osteotomy all used in combination with a tendon transfer. The combination MCO & Evans and MCO & Z procedures were shown to provide the greatest amount of correction for both forefoot abduction and hindfoot valgus. However, these two procedures significantly increased the joint contact force, specifically at the calcaneocuboid joint, and ground reaction force along the lateral column. With exception to the lateral bands of the plantar fascia and middle spring ligament, the strain present in the plantar fascia, spring, and deltoid ligaments decreased after all procedures. The use of patient specific computational models provided the ability to investigate effects of alternate surgical corrections on restoring biomechanical function in flatfoot patients.
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Lima, Thiago Coelho. "Tratamento cirúrgico do pé plano flexível em crianças e adolescentes por osteotomia de alongamento da coluna lateral do calcâneo ou artrorrise subtalar: revisão sistemática da literatura". Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/17/17142/tde-26042018-161555/.
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O pé plano flexível é condição frequente na criança e apresenta forte tendência para correção espontânea ou tornar-se deformidade moderada ou leve no adulto, que não causará problema. Entretanto, em uma pequena proporção de casos, a deformidade é mais grave, não melhora espontaneamente ou com métodos conservadores, há comprometimento mecânico, deformidade e, eventualmente, dor. Assim, o tratamento cirúrgico deve ser considerado e, para isso, várias técnicas são descritas. O objetivo desta revisão sistemática foi avaliar os resultados da literatura do tratamento do pé plano flexível sintomático da criança ou adolescente pela osteotomia de alongamento da coluna lateral do calcâneo e pela artrorrise subtalar. Foi realizada busca sistemática eletrônica nas bases de dados PubMed, Web of Science, SCOPUS, Cochrane, LILACS e SCIELO, além de sites relevantes, por artigos publicados entre 1975 e novembro de 2016. Após aplicação dos critérios de elegibilidade, os artigos selecionados foram avaliados quanto aos resultados clínicos, radiográficos e complicações. Dos 393 artigos encontrados nas bases de dados, apenas 32 estudos foram selecionados, segundo os critérios de inclusão e exclusão, 24 artigos avaliaram artrorrise subtalar (total de 1.395 pacientes, 2.307 pés tratados) e oito avaliaram osteotomia de alongamento da coluna lateral do calcâneo (total de 105 pacientes, 167 pés). O seguimento pós-operatório médio foi de 51,8 meses (mínimo de dois e máximo de 225 meses) para artrorrise subtalar e 34,8 meses (mínimo de seis e máximo de 156 meses) para osteotomia de alongamento da coluna lateral do calcâneo. A idade mínima no momento de realização da cirurgia foi de quatro anos e a idade máxima foi de 18 anos. Somente seis autores realizaram estudo prospectivo, apenas um comparou as duas técnicas, mas sem caso-controle ou aleatorização. Clinicamente, houve 88,3% de pacientes satisfeitos ou muito satisfeitos submetidos à artrorrise subtalar e 91,4% dos submetidos a osteotomia de alongamento da coluna lateral do calcâneo e 8% de insatisfeitos submetidos a artrorrise subtalar e 6,2% de insatisfeitos submetidos a osteotomia de alongamento da coluna lateral do calcâneo. Quanto aos parâmetros radiográficos, houve melhora de todos os sete ângulos avaliados nas duas técnicas. A taxa total de complicações foi de 18,2% para os submetidos a artrorrise subtalar, compostas principalmente por dor residual (11,5%), necessidade de reabordagem (8,9%), quebra de implante (5,2%), necessidade de retirada do implante (5,2%), para osteotomia de alongamento da coluna lateral do calcâneo a taxa total de complicações foi de 20,9%, compostas principalmente por deiscência de ferida operatória (19%), dor residual (17,2%), deslocamento do enxerto ósseo (9%) e pseudoartrose (7,1%). As publicações no período avaliado são compostas em sua maioria por estudos descritivos ou série de casos (nível de evidência III ou IV), com grandes variações metodológicas, mas com alto índice de satisfação dos pacientes e cirurgiões, em relação aos resultados nas duas técnicas. Entretanto, são necessárias novas pesquisas com desenho prospectivo, aleatorizado, grupo controle adequado e critérios de avaliação validados.Flexible flatfoot is a common pediatric condition and has a strong tendency to spontaneously regress as growth progresses. However, in a small number of cases, the deformity is more severe, does not improve spontaneously or with conservative methods and may cause mechanical impairment and pain. In such cases, operative management should be considered, and several correction techniques are available. The aim of this systematic review was to evaluate the publications on calcaneal lateral column lengthening osteotomy or subtalar arthroereisis for severe flexible flatfoot in children or adolescents. A systematic search was performed of the electronic databases PubMed, Web of Science, SCOPUS, Cochrane, LILACS, CINAHL and SciELO for articles published between 1975 and 2016. After applying the eligibility criteria, the publications were evaluated for clinical and radiographic results and complications. We identified 393 articles, but only selected 32 studies using the inclusion and exclusion criteria. These studies included a total of eight articles (105 patients and 167 feet) for calcaneal lateral column lengthening and 24 articles for subtalar arthroereisis (1,395 patients and 2,307 feet). The mean postoperative follow-up was 34.8 months (minimum: 6 months) for calcaneal osteotomy and 51.8 months (minimum of two months) for subtalar arthroereisis. The minimum and maximum ages at the time of the surgery were four years and 18 years, respectively. Only six authors conducted prospective studies, but their reports did not include case-controls or randomization. According to these studies, clinically, there were 88.3% of satisfied or very satisfied patients submitted to subtalar arthroereisis and 91.4% of those undergoing calcaneal lateral column lengthening osteotomy and 8% of dissatisfied patients undergoing subtalar arthroereisis and 6.2% of dissatisfied for calcaneal lateral column lengthening osteotomy. Regarding the radiographic parameters, there was improvement of all seven angles evaluated in the two techniques. The total rate of complications was 18.2% for those undergoing subtalar arthroereisis, composed mainly of residual pain (11.5%), need for reboarding (8.9%), implant failure (5.2%), need for implant removal (5,2%). The total complication rate was 20.9% for calcaneal lateral column lengthening osteotomy, consisting mainly of operative wound dehiscence (19%), residual pain (17,2%), displacement of the bone graft (9%) and pseudoarthrosis (7.1%). The majority of publications were descriptive studies or case series (evidence level III or IV), with different study designs, but patients and surgeons reported high satisfaction with the results. However, more research is needed with a prospective and randomized design, adequate control groups, and objective evaluation criteria.
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Azevedo, Liliana Aparecida de Paula. "Analise dos pés através da baropodometria e da classificação plantar em escolares de Guaratinguetá /". Guaratinguetá : [s.n.], 2006. http://hdl.handle.net/11449/97106.
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Orientador: Luiz Fernando Costa NascimentoBanca: Mauro Pedro Peres
Banca: Luis Carlos Ribeiro Lara
Resumo: O presente estudo teve por objetivo realizar um levantamento do padrão do pé em crianças no início da segunda infância. A metodologia utilizou duas plataformas de força para detecção da distribuição das pressões plantares e da impressão plantar para mensurar o arco longitudinal medial, por conseguinte, classificar os tipos de pés. Foram comparadas as forças plantares da porção medial, lateral e as forças plantares da região anterior e posterior dos pés. Os pés, após serem classificados, foram comparados com as médias das forças plantares de cada sensor. Estes valores médios, foram comparados através do teste t de Student, teste de ANOVA e estimadas as correlações através do Coeficiente de Pearson com significância de alfa 5%. Participaram do estudo 57 escolares da primeira série do ensino fundamental com idade média de 7 anos e 6 meses, sem qualquer queixa ou indício de patologia ortopédica e/ou neurológica. A aquisição da atividade baropodométrica, foi coletada três vezes seguidas para cada sensor, e realizada na posição ortostática como a impressão plantar. As pressões plantares foram significativamente maiores da região medial do pé esquerdo e em ambos os retropés. A amostra apresentou prevalência de pés planos. Foi possível identificar uma boa correlação entre as forças plantares e o peso das crianças e uma boa correlação entre o total das áreas da impressão plantar com o peso da criança.
Abstract: The aim of this study was to obtain a survey on foot pattern of children up to 10 years old of. The method utilized two pressure platform to detect the distribution of plantar pressures and of plantar prints to measure the medial and longitudinal foot arch and to classify the foot types. The plantar pressures were compared according to medial and lateral side of foot the anterior and posterior regions of the foot were also studied. The feet were classified and were compared the mean pressure plantar of each platform sensor. These mean values were analysed by Student t test, Analysis of Variance (ANOVA) test and the correlations were performed by the Pearson coeficient. The significance level adopted was alpha = 5%. This study was developed with students of Alcina Soares Fundamental Level School, located in Guaratinguetá, São Paulo State. Fitfy seven students were enrolled in this study. The average age of the participants age was 7,5 years old, they did not present any orthopedical or neurological symptom. The baropodometric activity records were collected with three times repetition to each sensor and the prodecure was performed in orthostatic position. The same procedure was adopted to obtain the plantar print. The plantar pressures were higher in the posterior region of the foot and in the medial region of the feet left. The plantar pressures were higher in the flat foot in comparison to the normal foot. It was possible to identify a good correlation between total foot surface and child weight; also, the plantar footprint had a good correlation with the child weight. So, the procedure performed with mechanical sensor was capable to define the pattern of pressure plantar in students.
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Azevedo, Liliana Aparecida de Paula [UNESP]. "Analise dos pés através da baropodometria e da classificação plantar em escolares de Guaratinguetá". Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/97106.
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O presente estudo teve por objetivo realizar um levantamento do padrão do pé em crianças no início da segunda infância. A metodologia utilizou duas plataformas de força para detecção da distribuição das pressões plantares e da impressão plantar para mensurar o arco longitudinal medial, por conseguinte, classificar os tipos de pés. Foram comparadas as forças plantares da porção medial, lateral e as forças plantares da região anterior e posterior dos pés. Os pés, após serem classificados, foram comparados com as médias das forças plantares de cada sensor. Estes valores médios, foram comparados através do teste t de Student, teste de ANOVA e estimadas as correlações através do Coeficiente de Pearson com significância de alfa 5%. Participaram do estudo 57 escolares da primeira série do ensino fundamental com idade média de 7 anos e 6 meses, sem qualquer queixa ou indício de patologia ortopédica e/ou neurológica. A aquisição da atividade baropodométrica, foi coletada três vezes seguidas para cada sensor, e realizada na posição ortostática como a impressão plantar. As pressões plantares foram significativamente maiores da região medial do pé esquerdo e em ambos os retropés. A amostra apresentou prevalência de pés planos. Foi possível identificar uma boa correlação entre as forças plantares e o peso das crianças e uma boa correlação entre o total das áreas da impressão plantar com o peso da criança.
The aim of this study was to obtain a survey on foot pattern of children up to 10 years old of. The method utilized two pressure platform to detect the distribution of plantar pressures and of plantar prints to measure the medial and longitudinal foot arch and to classify the foot types. The plantar pressures were compared according to medial and lateral side of foot the anterior and posterior regions of the foot were also studied. The feet were classified and were compared the mean pressure plantar of each platform sensor. These mean values were analysed by Student t test, Analysis of Variance (ANOVA) test and the correlations were performed by the Pearson coeficient. The significance level adopted was alpha = 5%. This study was developed with students of Alcina Soares Fundamental Level School, located in Guaratinguetá, São Paulo State. Fitfy seven students were enrolled in this study. The average age of the participants age was 7,5 years old, they did not present any orthopedical or neurological symptom. The baropodometric activity records were collected with three times repetition to each sensor and the prodecure was performed in orthostatic position. The same procedure was adopted to obtain the plantar print. The plantar pressures were higher in the posterior region of the foot and in the medial region of the feet left. The plantar pressures were higher in the flat foot in comparison to the normal foot. It was possible to identify a good correlation between total foot surface and child weight; also, the plantar footprint had a good correlation with the child weight. So, the procedure performed with mechanical sensor was capable to define the pattern of pressure plantar in students.
Libros sobre el tema "Flatfoot"
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Maccius, Plautus Titus, ed. Flatfoot. Sydney: Currency Press, 2004.
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Clifford, Eth. Flatfoot fox and the case of the missing whoooo. Boston: Houghton Mifflin, 1993.
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Clifford, Eth. Flatfoot Fox and the case of the missing schoolhouse. Boston: Houghton Mifflin, 1997.
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Clifford, Eth. Flatfoot Fox: And the case of the Bashful Beaver. Boston: Houghton Mifflin, 1995.
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Clifford, Eth. Flatfoot Fox and the case of the missing eye. Boston: Houghton Mifflin, 1990.
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Clifford, Eth. Flatfoot Fox and the case of the Nosy Otter. New York: Scholastic Inc., 1993.
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Clifford, Eth. Flatfoot fox and the case of the missing whoooo. New York: Scholastic, 1993.
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Clifford, Eth. Flatfoot Fox and the case of the Nosy Otter. Boston: Houghton Mifflin, 1992.
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Clifford, Eth. Flatfoot Fox and the case of the missing eye. New York: Scholastic, 1990.
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Jong, Teuntje Maria de. Little Flatfoot goes digital: Computer mediated stories and emergent literacy. Leiden: Leiden University, 2002.
Buscar texto completoCapítulos de libros sobre el tema "Flatfoot"
1
O’Donnell, Seth W. y Brad D. Blankenhorn. "Flatfoot". En Essential Orthopedic Review, 207–8. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-78387-1_93.
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Warman, J. R. "Flatfoot Deformity (Familial Flexible Flatfoot)". En Current Orthopedic diagnosis & treatment, 76–77. London: Current Medicine Group, 2000. http://dx.doi.org/10.1007/978-1-4613-1107-2_38.
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Weinraub, Glenn. "Flatfoot Surgery". En Complications in Foot and Ankle Surgery, 291–302. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-53686-6_22.
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Meyr, Andrew J. y Laura E. Sansosti. "Flatfoot Deformity". En Evidence-Based Podiatry, 121–38. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-50853-1_7.
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Robb, James. "The Flatfoot". En Paediatric Orthopaedic Diagnosis, 229–35. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2392-4_23.
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Valderrabano, Victor y Martin Wiewiorski. "The Painful Flatfoot". En European Instructional Lectures, 201–9. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11832-6_18.
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Heckman, J. D. "Adult Acquired Flatfoot". En Current Orthopedic diagnosis & treatment, 6–7. London: Current Medicine Group, 2000. http://dx.doi.org/10.1007/978-1-4613-1107-2_4.
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Park, Joseph S. y Lew C. Schon. "Acquired Adult Flatfoot Deformity". En International Advances in Foot and Ankle Surgery, 377–90. London: Springer London, 2012. http://dx.doi.org/10.1007/978-0-85729-609-2_36.
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Park, Joseph S. y Lew C. Schon. "Acquired Adult Flatfoot Deformity". En Special Procedures in Foot and Ankle Surgery, 103–24. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-4103-7_6.
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Richie Jr, Douglas H. "The Adult Acquired Flatfoot". En Pathomechanics of Common Foot Disorders, 223–74. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-54201-6_7.
Texto completoActas de conferencias sobre el tema "Flatfoot"
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Wang, Yunqian y Xupeng Wang. "Design and experimental research of flatfoot orthosis Classification, experiment and application of flatfoot orthosis for different groups of people". En ISAIMS 2021: 2nd International Symposium on Artificial Intelligence for Medicine Sciences. New York, NY, USA: ACM, 2021. http://dx.doi.org/10.1145/3500931.3500980.
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Otis, James C., Il-Hoon Sung, Sam Lee, Christopher Hubbard y Jonathan T. Deland. "Comparison of Two Calcaneal Osteotomies in a Flatfoot Model". En ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/bed-23071.
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Abstract Posterior tibial tendon dysfunction (PTTD) often leads to adult acquired flatfoot deformity. Loss of the tendon’s invertor function results in a progressively lower medial longitudinal arch, hindfoot valgus and forefoot abduction. Treatment varies based on surgeon preference, but typically consists of a medial slide calcaneal osteotomy (slide) and a flexor digitorum longus (FDL) tendon transfer. The concept of a medial displacement calcaneal osteotomy with a posterior distraction (distraction) has been introduced, and demonstrated to significantly reduce the inversion force requirement for heel rise compared to the slide[l]. This finding is significant as it suggests that the distraction is more efficacious than the slide in correcting deformity. However, it has not been validated on a flatfoot model.
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Spratley, Edward M., Erika A. Matheis, Curtis W. Hayes, Robert S. Adelaar y Jennifer S. Wayne. "Patient Specific Modeling of a Stage II Flatfoot Population". En ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14165.
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Adult Acquired Flatfoot Deformity (AAFD) is a degenerative disease characterized by chronic changes in the joint alignment of the bones of the foot leading to significant pain and dysfunction. The hallmark of this disease is the functional loss in posterior tibialis tendon (PTT) strength though mechanical degradation of passive support structures of the foot have also been implicated, namely the spring ligament, talocalcaneal interosseous ligaments, fibers of the anterior deltoid, and the long and short plantar ligaments. [1] Clinically, AAFD patients present with midfoot collapse, forefoot abduction, and valgus tilting of the hindfoot and the magnitudes of these deformities are most often graded using plane radiographs in the mediolateral (ML), oblique anteroposterior (AP) and posteroanterior (PA) views. [1–3] The objective of this study was to develop a population of patient-matched rigid-body kinematic models using a standardized methodology that can be used to predict pathologic foot function with agreement between patient and model assessed through clinically relevant radiographic joint angles.
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Iaquinto, Joseph M. y Jennifer S. Wayne. "Flatfoot and Its Surgical Treatments: a Computational Model of Common Procedures". En ASME 2010 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2010. http://dx.doi.org/10.1115/sbc2010-19592.
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Adult Acquired Flatfoot Deformity (AAFD) is a multi-stage degenerative joint disease. Common indicators are distinct morphological anomalies of the affected foot and the presence of pain and/or weakness along the posterior tibial tendon path. Early treatment (Stage I) can effect favorable results with nonoperative techniques including shoe orthotics. Surgical treatment begins at Stage II, which is characterized by more profound deep tissue damage to ligaments and tendons of the arch. The level of severity increases in Stages III and IV with significant joint damage including to the ankle [1].
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Zhongkui Wang, Kan Imai, Masamitsu Kido, Kazuya Ikoma y Shinichi Hirai. "A finite element model of flatfoot (Pes Planus) for improving surgical plan". En 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2014. http://dx.doi.org/10.1109/embc.2014.6943723.
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Sampath Kumar, C. y S. M. Prakash. "A Study on Prevalence of Flatfoot among High School Boys and Girls". En Third International Conference on Current Trends in Engineering Science and Technology ICCTEST-2017. Grenze Scientific Society, 2017. http://dx.doi.org/10.21647/icctest/2017/49149.
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Spratley, E. Meade, Erika A. Matheis, Curtis W. Hayes, Robert S. Adelaar y Jennifer S. Wayne. "Patient Specific Modeling of Stage II Flatfoot Deformity Before and After Surgical Correction". En ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80366.
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Adult Acquired Flatfoot Deformity (AAFD) is a degenerative disease characterized by chronic changes in the joint alignment of the bones of the foot leading to significant pain and dysfunction. The early stages of the disease are thought to involve primarily the mechanical degradation of the soft-tissue support structures of the foot, namely the spring ligament, talocalcaneal interosseous ligaments, fibers of the anterior deltoid, and the long and short plantar ligaments, as well as a functional loss in posterior tibialis tendon (PTT) strength. [1] These changes manifest clinically as midfoot collapse, forefoot abduction, and valgus tilting hindfoot. [1–3] Various surgical corrections exist for Stage II AAFD to restore more normal biomechanical function to the foot. Treatment selection is most often based on clinical outcomes and surgeon preference. However, the optimal procedure(s) for an individual patient is unknown. Computer Aided Design (CAD) approaches offer advantages for evaluating foot function as well as the ability to predict pre-operatively the outcome of corrective procedures. This study developed a 3D patient specific computer model of the lower leg from a diagnosed Stage II flatfoot patient and evaluated its ability to predict foot function pre- and post-operatively through agreement with clinically relevant radiographic joint angles.
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Adriyani, Riza, Tommy Apriantono y Suprijanto Suprijanto. "Influence of Fatigue on Balance and Lower Limb Muscles Activity in Flatfoot Children". En 2nd International Conference on Sports Science, Health and Physical Education. SCITEPRESS - Science and Technology Publications, 2017. http://dx.doi.org/10.5220/0007054100050011.
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Li, Hongwei, Long Jin, Rui Zhang, Zhiguan Huang, Mei Liu, Jiliang Zhang y Yang Shi. "A New Type of Neural Network for Assisting Diagnosis of Flatfoot in Juveniles". En 2019 Chinese Control Conference (CCC). IEEE, 2019. http://dx.doi.org/10.23919/chicc.2019.8865697.
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Li, Yang, Shuyun Jiang y Yiying Li. "Effect of different severity of flexible flatfoot on walking function in school-age children". En 27th Annual Meeting of the GCMAS. GCMAS, 2022. http://dx.doi.org/10.52141/gcmas2022_38.
Texto completoInformes sobre el tema "Flatfoot"
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Cheng, Jinling, Dongmiao Han, Jiayang Qu, Zicai Liu y Ying Huang. Effects of short foot training on patients with flatfeet: a systematic review and Meta-analysis of randomized controlled studies. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, diciembre de 2023. http://dx.doi.org/10.37766/inplasy2023.12.0095.
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