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https://www.readbyqxmd.com/read/28865590/matrix-associated-stem-cell-transplantation-mast-in-chondral-defects-of-the-1st-metatarsophalangeal-joint-is-safe-and-effective-2-year-follow-up-in-20-patients
#1
Martinus Richter, Stefan Zech, Stefan Andreas Meissner
The aim of the study was to assess the 2-year-follow-up of matrix-associated stem cell transplantation (MAST) in chondral defects of the 1st metatarsophalangeal joint (MTPJ). In a prospective consecutive non-controlled clinical follow-up study, 20 patients with 25 chondral defect at the 1st MTPJ that were treated with MAST from October 1st, 2011 to March, 30th, 2013 were analysed. The size and location of the chondral defects range of motion (ROM), and the Visual-Analogue-Scale Foot and Ankle (VAS FA) before treatment and at follow-up were registered...
September 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28801132/in-vivo-imaging-of-the-sentinel-vein-using-the-near-infrared-vascular-imaging-system-in-hallux-valgus-patients
#2
Tomoyuki Nakasa, Masakazu Ishikawa, Yasunari Ikuta, Masahiro Yoshikawa, Mikiya Sawa, Yusuke Tsuyuguchi, Nobuo Adachi
BACKGROUND: A high incidence of dorsomedial cutaneous nerve (DMCN) damage in hallux valgus surgery has been reported. Identification of the vein around 1st metatarsal head is reported to be helpful to reduce the DMCN damage during surgery. The near-infrared (NIR) vascular imaging system, the VeinViewer(®) Flex, projects the vein onto the skin. The purpose of this study was to investigate the difference of the vein course between normal and hallux valgus foot using the VeinViewer(®) Flex, and to validate that the DMCN was accompanied with its vein...
August 8, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28618308/supplementary-medial-locking-plate-fixation-of-ludloff-osteotomy-versus-sole-lag-screw-fixation-a-biomechanical-evaluation
#3
Panagiotis E Chatzistergos, George C Karaoglanis, Stavros K Kourkoulis, Minos Tyllianakis, Emmanouil D Stamatis
BACKGROUND: The Ludloff oblique osteotomy is inherently unstable, which might lead to delayed union and loss of correction. Supplementary fixation to two lag screw fixation has been proposed. The hypothesis is that the osteotomy fixation constructs supplemented by a mini locking plate provide greater resistance to osteotomy gaping and loss of angular correction in response to cyclic loading. METHODS: Twenty fourth generation composite 1st metatarsals were used and underwent a Ludloff osteotomy...
June 7, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28599798/determination-of-optimal-shoe-fitting-for-children-tennis-players-effects-of-inner-shoe-volume-and-upper-stiffness
#4
Alexis Herbaut, Maxime Roux, Nils Guéguen, Pascale Chavet, Franck Barbier, Emilie Simoneau-Buessinger
The purpose of this study was to determine the optimal inner-shoe volume for children tennis players. Sixteen participants, aged from 8 to 12 years old assessed comfort of 6 shoes, which were a combination of 3 lasts (thin, medium and wide) and 2 upper constructions (flexible and stiff), while a sock equipped with textile sensors was measuring the pressure applied on their foot. The thin last was based on the proportion of an adult last. The widest shoes produced the lowest pressure on the 1st and 5th metatarsal heads, the medial midfoot and the medial and lateral heel (p < 0...
June 6, 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28435580/first-and-second-metatarsophalangeal-joint-open-dislocations-a-case-report
#5
A Sharma, R Dosajh, G S Bedi, K Gupta, A Jain
Dislocation of multiple metatarsophalangeal joint is an uncommon injury. The mechanism of injury is a high energy force distal to proximal with foot in hyperextension at the metatarsophalangeal (MTP) joint. The acute hyperextension of the toe at the moment of injury causes avulsion of the plantar part of the capsule from the junction of head and neck of the metatarsal. If the collateral ligaments remain intact, they maintain the locked fibrocartilaginous plate over the dorsum of the head of the metatarsal, making closed reduction impossible...
March 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/28420541/stability-of-lisfranc-injury-fixation-in-thiel-cadavers-is-routine-fixation-of-the-1st-and-3rd-tarsometatarsal-joint-necessary
#6
Alistair I W Mayne, Robert Lawton, Stephen Dalgleish, Fraser Harrold, George Chami
BACKGROUND: There is debate as to whether a home run screw (medial cuneiform to 2nd metatarsal base) combined with k-wire fixation of the 4th & 5th tarsometatarsal joints is sufficient to stabilise Lisfranc injuries or if fixation of the 1st and 3rd tarsometatarsal joints is also required. Unlike the 2nd, 4th and 5th tarsometatarsal joints, stabilisation of the 1st and 3rd requires either intra-articular screw or an extra-articular plate which risk causing chondrolysis and/or osteoarthritis...
April 11, 2017: Injury
https://www.readbyqxmd.com/read/28282537/a-large-solitary-fibroma-of-the-deep-compartment-of-the-sole
#7
T H Lui
A 50-year-old lady presented with a right foot mass and pain for 1year. Magnetic resonance imaging showed a 3.9×3.2×5cm mass on plantar side of the forefoot deep to the major flexor tendons and plantar aponeurosis and inferior to 1st-4th metatarsals. The mass extended dorsally through the intermetatarsal space to the foot dorsum. Ultrasound guided biopsy was performed, which confirmed it was a fibroma. This case was further complicated by pathological fracture of the 3rd metatarsal. It was resected through a dorsal incision and surgical dislocation of the 2nd and 3rd tarsometatarsal joints...
June 2017: Foot
https://www.readbyqxmd.com/read/28259007/can-plantar-soft-tissue-mechanics-enhance-prognosis-of-diabetic-foot-ulcer
#8
R Naemi, P Chatzistergos, S Suresh, L Sundar, N Chockalingam, A Ramachandran
AIM: To investigate if the assessment of the mechanical properties of plantar soft tissue can increase the accuracy of predicting Diabetic Foot Ulceration (DFU). METHODS: 40 patients with diabetic neuropathy and no DFU were recruited. Commonly assessed clinical parameters along with plantar soft tissue stiffness and thickness were measured at baseline using ultrasound elastography technique. 7 patients developed foot ulceration during a 12months follow-up. Logistic regression was used to identify parameters that contribute to predicting the DFU incidence...
April 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28242568/the-mechanism-of-force-transference-in-feet-of-children-ages-two-to-six
#9
Mingyu Hu, Nan Zhou, Bo Xu, Wuyong Chen, Jianxin Wu, Jin Zhou
The aim of this study was to design an algorithm to quantify the plantar force transference of children from ages 2-6. In total, 319 healthy children without abnormal gait patterns, foot deformities or injuries, able to walk independently, and with normal BMIs were recruited, and their plantar force distributions were measured. Their plantar areas were divided into ten parts: the hallux, toes #2-5, the first to fifth metatarsal heads (1st-5th MTH), the mid-foot (MF), medial heel (MH) and lateral heel (LH), in which a relative force-time integral (FTIrel) (%) was calculated...
February 22, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28159053/technique-tip-simultaneous-first-metatarsal-lengthening-and-metatarsophalangeal-joint-fusion-for-failed-hallux-valgus-surgery-with-transfer-metatarsalgia
#10
Ashwin Chowdhary, Lisca Drittenbass, Richard Stern, Mathieu Assal
BACKGROUND: Failed hallux valgus surgery may result in residual or recurrent hallux valgus, and as well transfer metatarsalgia. The present technical tip concerns the combination of fusion of the first metatarsophalangeal (MTP) joint and lengthening of the first metatarsal (MT) through a scarf osteotomy. MATERIALS AND METHODS: Six patients underwent the presented technique, all for the indication of failed hallux valgus surgery with shortening of the first MT and degenerative changes in the 1st MTP joint...
March 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28093260/shear-and-pressure-under-the-first-ray-in-neuropathic-diabetic-patients-implications-for-support-of-the-longitudinal-arch
#11
Brian Davis, Mariam Crow, Visar Berki, Daniela Ciltea
OBJECTIVE: To assess dynamic arch support in diabetic patients at risk for Charcot neuroarthopathy whose arch index has not yet shown overt signs of foot collapse. METHODS: Two indirect measures of toe flexor activation (ratios: peak hallux pressure to peak metatarsal pressure - Ph/Pm; peak posterior hallux shear to peak posterior metatarsal shear - Sh/Sm) were obtained with a custom built system for measuring shear and pressure on the plantar surface of the foot during gait...
December 29, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/28031504/comparison-of-early-outcome-of-weil-osteotomy-and-distal-metatarsal-mini-invasive-osteotomy-for-lesser-toe-metatarsalgia
#12
Nicholas Eng Meng Yeo, Bryan Loh, Jerry YongQiang Chen, Andy Khye Soon Yew, Sean Yc Ng
PURPOSE: To compare the 6-month outcome of Weil osteotomy with distal metatarsal mini-invasive osteotomy (DMMO) in 33 patients with lesser toe metatarsalgia. METHODS: Records of 33 patients who underwent Weil osteotomy (n=20, 41 toes) or DMMO (n=13, 22 toes) for lesser toe metatarsalgia by a single surgeon were reviewed. 25 of them had a concurrent procedure on the 1st toe. Outcome at 6 months was assessed using the visual analogue score (VAS) for pain, American Orthopaedic Foot and Ankle Society (AOFAS) lesser toe metatarsophalangeal-interphalangeal (MTP-IP) score, and the RAND-36 score...
December 2016: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/27751169/measurement-of-transverse-forces-between-the-first-and-second-metatarsals-a-cadaveric-study
#13
Viktor Feldman, Meir Nyska, Niv Marom, Omer Slavin, Yaron S Brin, Uri Farkash, Ezequiel Palmanovich
BACKGROUND: This study was designed to measure transverse forces between the 1st and 2nd metatarsals after reducing the intermetatarsal angle (IMA) in normal and hallux valgus (HV) feet, during non weight-bearing and weight-bearing phases of gait. METHODS: Four cadaver feet, three normal and one with hallux valgus, were used. A new suture button device (CyclaPlex™) composed of screw-type buttons connected with a wire was implanted at the mid-shaft of the 1st and 2nd metatarsals of all the feet...
October 17, 2016: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/27676752/is-visual-feedback-pertinent-for-gait-rehabilitation-preliminary-study-of-plantar-pressure-control-with-visual-feedback-in-healthy-people
#14
Véronique Bourg, Guillaume Fumery, Pierre Moretto
OBJECTIVE: We present a preliminary study of plantar pressure control with visual feedback in healthy volunteers by using internal or external focus attentional focalization. The objectives are to decrease the pressure under the right heel of 70%. MATERIAL/PATIENTS AND METHODS: Twenty healthy volunteers were randomized into 2 groups using either internal or external focus. Plantar pressures were recorded using 3 captors under each heel, on the heads of 1st and 5th metatarsals as well as under the calcanean tuberosity (Winshoe device, Medicapteurs C)...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27334976/a-cross-sectional-observational-study-comparing-foot-and-ankle-characteristics-in-people-with-stroke-and-healthy-controls
#15
Dorit Kunkel, Julia Potter, Louis Mamode
PURPOSE: The purpose of this study was to explore and compare foot and ankle characteristics in people with stroke and healthy controls; and between stroke fallers and non-fallers. METHODS: Participants were recruited from community groups and completed standardized tests assessing sensation, foot posture, foot function, ankle dorsiflexion and first metatarsal phalangeal joint range of motion (1st MPJ ROM), hallux valgus presence and severity. RESULTS: Twenty-three stroke participants (mean age 75...
June 23, 2016: Disability and Rehabilitation
https://www.readbyqxmd.com/read/27227568/effects-of-pulsed-electromagnetic-fields-on-peripheral-blood-circulation-in-people-with-diabetes-a-randomized-controlled-trial
#16
RANDOMIZED CONTROLLED TRIAL
Jiahui Sun, Rachel Lai-Chu Kwan, Yongping Zheng, Gladys Lai-Ying Cheing
Cutaneous blood flow provides nourishment that plays an essential role in maintaining skin health. We examined the effects of pulsed electromagnetic fields (PEMFs) on cutaneous circulation of dorsal feet. Twenty-two patients with diabetes mellitus (DM) and 21 healthy control subjects were randomly allocated to receive either PEMFs or sham PEMFs (0.5 mT, 12 Hz, 30 min). Blood flow velocity and diameter of the small vein were examined by using ultrasound biomicroscopy; also, microcirculation at skin over the base of the 1st metatarsal bone (Flux1) and distal 1st phalange (Flux2) was measured by laser Doppler flowmetry before and after intervention...
July 2016: Bioelectromagnetics
https://www.readbyqxmd.com/read/27209257/forefoot-and-rearfoot-contributions-to-the-lunge-position-in-individuals-with-and-without-insertional-achilles-tendinopathy
#17
R L Chimenti, A Forenza, E Previte, J Tome, D A Nawoczenski
BACKGROUND: Clinicians use the lunge position to assess and treat restricted ankle dorsiflexion. However, the individual forefoot and rearfoot contributions to dorsiflexion and the potential for abnormal compensations are unclear. The purposes of this case-control study were to 1) compare single- (representing a clinical lunge position measure) versus multi-segment contributions to dorsiflexion, and 2) determine if differences are present in patients with tendinopathy. METHODS: 32 individuals (16 with insertional Achilles tendinopathy and 16 age- and gender-matched controls) participated...
July 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27149792/-analysis-of-stability-and-healing-on-minimally-invasive-osteotomy-for-the-treatment-of-hallux-valgus
#18
Wei-dong Sun, Jian-min Wen
To treat hallux valgus, minimally invasive osteotomy on 1st metatarsal neck,immobilization with "8-shape" bandagev was performed, and the effect was definited. The principles of osteotomy stability were analyzed from the osteotomy position, methods, direction and angle. The grinding drill was used to increase friction coefficient between the ends of osteotomy. Correct direction of osteotomy and suitable angle were the key point of stability. The immobilization with "8-shape" bandage complied with the principle of elastic fixation created the conditions for the slight movement of the osteotomy ends...
March 2016: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/26834348/foot-pressure-analysis-of-adults-with-flat-and-normal-feet-at-different-gait-speeds-on-an-ascending-slope
#19
Myoung-Kwon Kim
[Purpose] This study was conducted to determine the difference in foot pressures between flat and normal feet at different gait speeds on an ascending slope. [Subjects] This study enrolled 30 adults with normal (n=15) and flat feet (n=15), with ages from 21 to 30 years old, who had no history of neurological disorders or gait problems. A treadmill was used for the analysis of kinematic features during gait, using a slope of 10%, and gait velocities of slow, normal, and fast. [Methods] A foot pressure analyzer was used to measure changes in foot pressure...
December 2015: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/26813754/plantar-cutaneous-sensitivity-with-and-without-cognitive-loading-in-people-with-chronic-ankle-instability-copers-and-uninjured-controls
#20
Christopher J Burcal, Erik A Wikstrom
STUDY DESIGN: Controlled laboratory study. BACKGROUND: Deficits in light touch have recently been identified on the plantar surface of the foot in those with chronic ankle instability (CAI) but not in uninjured controls. It is unknown whether copers display similar deficits. Similarly, cognitive loading has been shown to impact postural control in different populations, but it is unclear how it may impact sensory perception. OBJECTIVES: To evaluate the difference in cutaneous sensation thresholds at rest and under cognitive loading, using Semmes-Weinstein monofilaments (SWMs), among uninjured controls, copers, and those with CAI...
April 2016: Journal of Orthopaedic and Sports Physical Therapy
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