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https://www.readbyqxmd.com/read/27821997/acute-plantar-midtarsal-dislocation-with-intercuneiform-dislocation-case-study-diagnosis-and-management
#1
Andrew P Harris, Joseph A Gil, Avi D Goodman, Christopher R Nacca, Todd R Borenstein
The midtarsal joint, also known as the Chopart or the transverse tarsal joint, is composed of the talonavicular and calcaneocuboid articulations.(1) Midtarsal joint dislocations are rare injuries given the strong periarticular ligamentous support.2, 3 Medial, lateral, dorsal, and rarely plantar dislocations have been reported from multiple high-energy mechanisms.4, 5 We describe the case of a 24-year-old male who sustained talonavicular and calcaneocuboid plantar dislocations associated with a middle and lateral intercuneiform dislocation, open proximal 5th metatarsal fracture, 2nd-4th metatarsal base fractures, and lateral cuneiform fracture...
March 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/27449524/primary-intraosseous-malignant-peripheral-nerve-sheath-tumor-of-the%C3%A2-medial-cuneiform-a-case-report-and-review-of-the-literature
#2
Saravanaraja Muthusamy, Sheila A Conway, J David Pitcher, H Thomas Temple
Peripheral nerve sheath tumors (benign and malignant) usually arise in the soft tissues and are unusual in bone. Intraosseous peripheral nerve sheath tumors are usually benign and constitute approximately 0.2% of all bone tumors. Intraosseous malignant peripheral nerve sheath tumors (MPNSTs) are uncommon and usually result from secondary invasion. Only a few cases of primary intraosseous MPNSTs have been reported in published studies, and these were localized mostly in the mandible (approximately 50%) or maxilla, spine, and, occasionally, in the appendicular skeleton...
July 19, 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27381808/extended-foot-ankle-musculoskeletal-models-for-application-in-movement-analysis
#3
Tiago M Malaquias, Carolina Silveira, Wouter Aerts, Friedl De Groote, Greta Dereymaeker, Jos Vander Sloten, Ilse Jonkers
Multibody simulations of human motion require representative models of the anatomical structures. A model that captures the complexity of the foot is still lacking. In the present work, two detailed 3D multibody foot-ankle models generated based on CT scans using a semi-automatic tool are described. The proposed models consists of five rigid segments (talus, calcaneus, midfoot, forefoot and toes), connected by five joints (ankle, subtalar, midtarsal, tarsometatarsal and metatarsophalangeal), one with 15DOF and the other with 8DOF...
February 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/27374354/prospective-observational-study-of-midtarsal-joint-sprain-epidemiological-and-ultrasonographic-analysis
#4
A Thiounn, C Szymanski, C Lalanne, K Soudy, X Demondion, C Maynou
INTRODUCTION: Foot and ankle injuries (FAI) are very common, with about 6000 cases per day in France. Unlike lateral ankle sprain (LAS), the diagnosis of midtarsal joint sprain (MJS, also known as Chopart's joint sprain) is not widely known. This prospective study aims to detail the epidemiology of MJS and compare it to LAS. PATIENTS AND METHOD: The study was conducted within our institution over a period of 16 months. Patients with clinical signs predictive of MJS without radiographic bone lesion underwent ultrasound assessment...
September 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27354397/multisegment-foot-kinematic-and-kinetic-compensations-in-level-and-uphill-walking-following-tibiotalar-arthrodesis
#5
Dustin A Bruening, Timothy E Cooney, Matthew S Ray, Gregory A Daut, Kevin M Cooney, Stephanie M Galey
BACKGROUND: Foot and ankle movement alterations following ankle arthrodesis are still not well understood, particularly those that might contribute to the documented increase in adjacent joint arthritis. Generalized tarsal hypermobility has long been postulated, but not confirmed in gait or functional movements. The purpose of this study was to more thoroughly evaluate compensation mechanisms used by arthrodesis patients during level and uphill gait through a variety of measurement modalities and a detailed breakdown of gait phases...
June 27, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/26895359/dynamic-flexion-stiffness-of-foot-joints-during-walking
#6
Enrique Sanchis-Sales, Joaquin L Sancho-Bru, Alba Roda-Sales, Javier Pascual-Huerta
BACKGROUND: Dynamic stiffness can be used for studying foot pathologic abnormalities and for developing prostheses and orthoses. Although previous works have studied the role of ankle joint stiffness during gait, other foot joints have not yet been analyzed. We sought to characterize the dynamic stiffness of the ankle, midtarsal, and metatarsophalangeal joints during normal walking. METHODS: Kinematics and contact data from four healthy individuals during walking were registered with a three-dimensional motion analysis system and a pressure platform...
January 2016: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/26860043/classification-and-outcome-of-fracture-dislocation-of-the-cuneiform-bones
#7
Alexander T Mehlhorn, Hagen Schmal, Maria Anna Legrand, Norbert P Südkamp, Peter C Strohm
Fractures and dislocations of the cuneiform bones are rare injuries to the midtarsal foot. The injury severity is often unclear, and the prognostic factors are unknown. The purpose of the present study was to characterize our insights of the diagnostics, therapy, and fracture patterns. We questioned whether the number of involved cuneiform bones and the type of injury would affect the clinical outcome. With this information, we aimed to develop a classification system for injuries of the cuneonavicular joint...
February 6, 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/26767963/the-subtalar-joint-complex-of-australopithecus-sediba
#8
Thomas C Prang
The hominin talus has figured prominently in previous studies of the functional morphology of the talocrural joint, but the talocalcaneal and talonavicular joints have received comparatively less attention despite their functional importance as components of the subtalar joint complex. An associated complete talus and calcaneus attributed to the Malapa Hominin 2 (MH2) individual of Australopithecus sediba offers the opportunity to evaluate the subtalar joint complex in an early hominin. Furthermore, detailed morphological comparisons of A...
January 2016: Journal of Human Evolution
https://www.readbyqxmd.com/read/26628197/rearfoot-posture-of-australopithecus-sediba-and-the-evolution-of-the-hominin-longitudinal-arch
#9
Thomas C Prang
The longitudinal arch is one of the hallmarks of the human foot but its evolutionary history remains controversial due to the fragmentary nature of the fossil record. In modern humans, the presence of a longitudinal arch is reflected in the angular relationships among the major surfaces of the human talus and calcaneus complex, which is also known as the rearfoot. A complete talus and calcaneus of Australopithecus sediba provide the opportunity to evaluate rearfoot posture in an early hominin for the first time...
2015: Scientific Reports
https://www.readbyqxmd.com/read/26620421/outcomes-of-chopart-amputation-in-a-tertiary-referral-diabetic-foot-clinic-data-from-a-consecutive-series-of-83-hospitalized-patients
#10
Ezio Faglia, Giacomo Clerici, Robert Frykberg, Maurizio Caminiti, Vincenzo Curci, Francesco Cetta, Vincenzo Prisco, Rosaria Greco, Marco Prisco, Alberto Morabito
The purpose of the present retrospective study was to evaluate the outcomes (ie, ulcer recurrence, major amputation, death) in diabetic patients undergoing Chopart amputation because of deep infection or gangrene extending to the midfoot. From 2009 to 2011, 83 patients, aged 71.4 ± 9.3 years, underwent a midtarsal amputation and were followed up until December 31, 2012 (mean follow-up 2.8 ± 0.8 years). Of the 83 patients, 26 were female, 61 required insulin, 47 had renal insufficiency, 19 underwent hemodialysis, 65 had hypertension, 34 had a history of cardiac disease, and 4 had a history of stroke...
March 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/26238571/plantar-flexion-of-the-ankle-joint-complex-in-terminal-stance-is-initiated-by-subtalar-plantar-flexion-a-bi-planar-fluoroscopy-study
#11
Seungbum Koo, Kyoung Min Lee, Young Joo Cha
Gross motion of the ankle joint complex (AJC) is a summation of the ankle and subtalar joints. Although AJC kinematics have been widely used to evaluate the function of the AJC, the coordinated movements of the ankle and subtalar joints are not well understood. The purpose of this study was to accurately quantify the individual kinematics of the ankle and subtalar joints in the intact foot during ground walking by using a bi-planar fluoroscopic system. Bi-planar fluoroscopic images of the foot and ankle during walking and standing were acquired from 10 healthy subjects...
October 2015: Gait & Posture
https://www.readbyqxmd.com/read/26213162/functional-outcomes-after-gunshot-wounds-to-the-foot-and-ankle
#12
Zeeshan S Husain, Stephen Schmid, Nicholas Lombardo
The peer-reviewed, clinical data focusing on foot and ankle gunshot wounds are limited. The present study aimed to evaluate functional outcomes in a case series according to the area of injury, articular involvement, and the presence of infection. From January 2003 through February 2011 (8 years), 37 patients treated at Sinai-Grace Hospital (Detroit, MI) for civilian gunshot wounds localized to the foot and/or ankle were reviewed. Of these, 27 (72.97%) met the inclusion criteria. All acute wounds were thoroughly irrigated in the emergency room (8 of 27, 29...
July 24, 2015: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/26123549/midtarsal-reconstructive-arthrodesis-using-a-multi-axial-correction-fixator-in-charcot-midfoot-arthropathy
#13
Takumi Matsumoto, Selene G Parekh
UNLABELLED: Reconstructive surgeries for Charcot foot are challenging due to complicated conditions and comorbidities including poor bone quality, sensory abnormalities, poor vascularity, and immunity impairment. Although various fixation devices, including screws, plates, and external fixators, have been used in the surgical reconstruction of the Charcot midfoot, all of these devices are associated with some disadvantages. This study aims to evaluate the outcome of the Multi-Axial Correction (MAC) monolateral external fixation system for the reconstructive surgery of midfoot Charcot neuroarthropathy...
December 2015: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/26075152/cuboid-manipulation-and-exercise-in-the-management-of-posterior-tibialis-tendinopathy-a-case-report
#14
Catherine Patla, Janice Lwin, Laura Smith, Eric Chaconas
BACKGROUND AND PURPOSE: Posterior tibialis tendinopathy is a prevalent musculoskeletal condition often resulting in gait abnormalities along with medial ankle and foot pain. The purpose of this case report is to describe the treatment of a patient with a three year history of posterior tibialis tendinopathy utilizing a combination of cuboid manipulation and exercise. CASE DESCRIPTION: The patient was a 23-year old female recreational runner and collegiate basketball player reporting a three year history of chronic left ankle and lower leg pain...
June 2015: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/25918629/an-important-cause-of-pes-planus-the-posterior-tibial-tendon-dysfunction
#15
Kemal Erol, Ali Yavuz Karahan, Ülkü Kerimoğlu, Banu Ordahan, Levent Tekin, Muhammed Şahin, Ercan Kaydok
Posterior tibial tendon dysfunction (PTTD) is an important cause of acquired pes planus that frequently observed in adults. Factors that play a role in the development of PTTD such as age-related tendon degeneration, inflammatory arthritis, hypertension, diabetes mellitus, obesity, peritendinous injections and more rarely acute traumatic rupture of the tendon. PTT is the primary dynamic stabilizer of medial arch of the foot. Plantar flexion and inversion of the foot occurs with contraction of tibialis posterior tendon, and arch of the foot becomes elaveted while midtarsal joints are locked and midfoot-hindfoot sets as rigid...
January 28, 2015: Clinics and Practice
https://www.readbyqxmd.com/read/25788311/surgical-treatment-of-cavus-foot-in-charcot-marie-tooth-disease-a-review-of-twenty-four-cases-aaos-exhibit-selection
#16
Cesare Faldini, Francesco Traina, Matteo Nanni, Antonio Mazzotti, Carlotta Calamelli, Daniele Fabbri, Camilla Pungetti, Sandro Giannini
Charcot-Marie-Tooth disease is the single most common diagnosis associated with cavus foot. The imbalance involving intrinsic and extrinsic muscles has been suggested as the main pathogenetic cause of cavus foot in this disease. The goal of surgical treatment is to correct the deformity to obtain a plantigrade foot. In the presence of a flexible deformity and the absence of degenerative arthritis, preserving as much as possible of the overall range of motion of the foot and ankle is advisable. Twenty-four cavus feet in twelve patients with Charcot-Marie-Tooth disease were included in the study...
March 18, 2015: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/25649368/surgical-reconstruction-of-charcot-foot-neuroarthropathy-a-case-based-review
#17
Tomáš Kučera, Pavel Šponer, Jaromír Šrot
Our case-based review focuses on limb salvage through operative management of Charcot neuroarthropathy of the diabetic foot. We describe a case, when a below-knee amputation was considered in a patient with chronic Charcot foot with a rocker-bottom deformity and chronic plantar ulceration. Conservative treatment failed. Targeted antibiotic therapy and operative management (Tendo-Achilles lengthening, resectional arthrodesis of Lisfranc and midtarsal joints, fixation with large-diameter axial screws, and plaster cast) were performed...
2014: Acta Medica (Hradec Králové)
https://www.readbyqxmd.com/read/25594359/midtarsal-break-variation-in-modern-humans-functional-causes-skeletal-correlates-and-paleontological-implications
#18
J M DeSilva, R Bonne-Annee, Z Swanson, C M Gill, M Sobel, J Uy, S V Gill
The midtarsal break was once treated as a dichotomous, non-overlapping trait present in the foot of non-human primates and absent in humans. Recent work indicates that there is considerable variation in human midfoot dorsiflexion, with some overlap with the ape foot. These findings have called into question the uniqueness of the human lateral midfoot, and the use of osteological features in fossil hominins to characterize the midfoot of our extinct ancestors. Here, we present data on plantar pressure and pedal mechanics in a large sample of adults and children (n = 671) to test functional hypotheses concerning variation in midfoot flexibility...
April 2015: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/25429580/isolated-subtalar-fusion-for-neglected-painful-intra-articular-calcaneal-fractures
#19
COMPARATIVE STUDY
Umut Yavuz, Sami Sökücü, Bilal Demir, Devrim Özer, Cağrı Özcan, Yavuz S Kabukçuoğlu
OBJECTIVE: The objective of this study was to evaluate the radiological and clinical outcomes of treatment of subtalar arthrodesis in patients developing talocalcaneal arthrosis secondary to intra-articular calcaneal fractures. METHODS: The study included 20 patients (21 feet) who underwent subtalar arthrodesis due to symptomatic subtalar arthrosis following conservative treatment for intra-articular calcaneal fracture between 2005 and 2011. Autograft or allograft was used in 11 patients...
2014: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/25234343/kinematics-of-primate-midfoot-flexibility
#20
Thomas M Greiner, Kevin A Ball
This study describes a unique assessment of primate intrinsic foot joint kinematics based upon bone pin rigid cluster tracking. It challenges the assumption that human evolution resulted in a reduction of midfoot flexibility, which has been identified in other primates as the "midtarsal break." Rigid cluster pins were inserted into the foot bones of human, chimpanzee, baboon, and macaque cadavers. The positions of these bone pins were monitored during a plantarflexion-dorsiflexion movement cycle. Analysis resolved flexion-extension movement patterns and the associated orientation of rotational axes for the talonavicular, calcaneocuboid, and lateral cubometatarsal joints...
December 2014: American Journal of Physical Anthropology
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