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https://www.readbyqxmd.com/read/29144991/finite-element-simulation-on-posterior-tibial-tendinopathy-load-transfer-alteration-and-implications-to-the-onset-of-pes-planus
#1
Duo Wai-Chi Wong, Yan Wang, Aaron Kam-Lun Leung, Ming Yang, Ming Zhang
BACKGROUND: Posterior tibial tendinopathy is a challenging foot condition resulting in pes planus, which is difficult to diagnose in the early stage. Prior to the deformity, abnormal internal load transfer and soft tissue attenuation are anticipated. The objective of this study was to investigate the internal load transfer and strain of the ligaments with posterior tibial tendinopathy, and the implications to pes planus and other deformities. METHODS: A three-dimensional finite element model of the foot and ankle was reconstructed from magnetic resonance images of a 28-year-old normal female...
November 3, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29099891/paraskiing-crash-and-knee-dislocation-with-multiligament-reconstruction-and-iliotibial-band-repair
#2
Chase S Dean, Olivia Fernandes, Mark E Cinque, Jorge Chahla, Robert F LaPrade
We describe the diagnosis, treatment, rehabilitation, and complications of a 27-year-old male paraskiier who sustained a closed high-velocity knee dislocation after colliding with a tree at a speed of 45 mph and falling 40 feet to the ground. Extensive surgery to repair and reconstruct the knee included open lateral capsular repair, open anatomical posterolateral corner reconstruction with split Achilles tendon allograft, open iliotibial band reconstruction with Achilles tendon allograft, arthroscopic anterior cruciate ligament reconstruction with bone-patellar tendon-bone autograft, and double-bundle posterior cruciate ligament reconstruction with Achilles tendon allograft for the anterolateral bundle and tibialis anterior tendon allograft for the posteromedial bundle...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29089990/therapeutic-efficacy-and-safety-of-various-botulinum-toxin-a-doses-and-concentrations-in-spastic-foot-after-stroke-a-randomized-controlled-trial
#3
Jiang Li, Ru Zhang, Bo-Li Cui, Yong-Xiang Zhang, Guang-Tao Bai, Si-Shan Gao, Wen-Jian Li
No recommended guidelines currently exist for the therapeutic concentration or dose of botulinum toxin type A (BTXA) injected into the muscle to treat limb spasticity. Therefore, in this randomized controlled trial, we explored the safety and efficacy of two concentrations and two doses of BTXA in the treatment of spastic foot after stroke to optimize this treatment in these patients. Eligible patients (n = 104) were randomized into four groups. The triceps surae and tibialis posterior on the affected side were injected with BTXA at one of two doses (200 U or 400 U) and two concentrations (50 U/mL or 100 U/mL)...
September 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29078821/tendonitis-and-tendinopathy-what-are-they-and-how-do-they-evolve
#4
REVIEW
Andrew E Federer, John R Steele, Travis J Dekker, Jordan L Liles, Samuel B Adams
The development of tendinitis and tendinopathy is often multifactorial and the result of both intrinsic and extrinsic factors. Intrinsic factors include anatomic factors, age-related factors, and systemic factors, whereas extrinsic factors include mechanical overload and improper form and equipment. Although tendinitis and tendinopathy are often incorrectly used interchangeably, they are in 2 distinct pathologies. Due to their chronicity and high prevalence in tendons about the ankle, including the Achilles tendon, the posterior tibialis tendon, and the peroneal tendons, tendinitis and tendinopathies cause significant morbidity and are important pathologies for physicians to recognize...
December 2017: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/29062385/central-nervous-system-and-limb-embolism-concurrence-due-to-atrial-myxoma-a-case-report%C3%A2
#5
Javad Salimi, Khosro Najari, Pezhman Farshidmehr, Roja Toosi, Batool Naghavi, Tayeb Ramim
Cardiac myxomas are the most common cardiac tumors with diverse nonspecific clinical manifestations. A 78-year-old man presented to the emergency department with complaints of pain and coldness of the left lower extremity. The left femoral artery pulse was detected, while the pulses of the left popliteal, dorsalis pedis, and posterior tibialis arteries were absent. No blood inflow was detected in the superficial and deep femoral, popliteal, and anterior and posterior tibialis arteries. Thrombectomy was performed, and a fatty-like mass from the bifurcation of the common femoral artery and a thrombotic mass from the proximal portion of the superficial and deep femoral arteries were removed...
July 2017: Journal of Tehran Heart Center
https://www.readbyqxmd.com/read/28987543/ankle-evaluation-in-active-rheumatoid-arthritis-by-ultrasound-a-cross-sectional-study
#6
Ahmed M Elsaman, Ehab Saad Mostafa, Ahmed R Radwan
Ankle joint evaluation is underestimated in many clinical and sonographic scores used for evaluation and follow-up of rheumatoid arthritis (RA) patients. Agreement on examination parameters is poor among sonographic scores that include the ankle joint. More effort is needed to detect the value of ankle joint examination in RA and assessment of ultrasonographic signs according to frequency, disease duration and activity. The objective of this study was to use ultrasound (US) to detect ankle involvement in active RA and to compare findings with disease duration, disease activity and assessment of ankle bone erosion...
October 5, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28979585/posterior-tibial-tendon-dysfunction-an-overview
#7
Samuel Ka-Kin Ling, Tun Hing Lui
BACKGROUND: Adult acquired flatfoot deformity is a commonly seen condition with a large clinical spectrum. It ranges from asymptomatic subjects to severely disabled arthritic patients. Posterior tibialis tendon dysfunction is a common cause of adult acquired flatfoot deformity. METHODS: This article systematically reviews the published literature from books and journals that were either originally written or later translated into the English language regarding the subject of posterior tibialis tendon dysfunction...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28950148/the-influence-of-foot-position-on-lower-leg-muscle-activity-during-a-heel-raise-exercise-measured-with-fine-wire-and-surface-emg
#8
Hiroshi Akuzawa, Atsushi Imai, Satoshi Iizuka, Naoto Matsunaga, Koji Kaneoka
OBJECTIVE: Exercises for lower leg muscles are important to improve function. To examine the influence of foot position on lower leg muscle activity during heel raises. DESIGN: Cross-sectional laboratory study. SETTING: Laboratory. PARTICIPANTS: Fourteen healthy men participated in this study. MAIN OUTCOME MEASURES: The muscle activity levels of the tibialis posterior (TP), peroneus longus (PL), flexor digitorum longus (FDL) and medial gastrocnemius (MG) were measured...
November 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28920487/unilateral-dislocation-of-the-posterior-tibialis-tendon-ptt-and-flexor-digitorum-longus-tendon-with-contralateral-ptt-subluxation-in-a-patient-with-congenitally-shallow-flexor-groove
#9
Jacob E Waldron, Andrew S Bernhardson, Todd A Fellars
INTRODUCTION: Flexor tendon dislocation from the flexor tendon groove posterior of the medial malleolus has been previously described, and may be difficult to diagnose initially, but is amendable to surgical treatment with good outcomes. We present a unique case of unilateral dislocation of the posterior tibialis and flexor digitorum longus tendons with contralateral flexor digitorum longus subluxation that was treated surgically with a good outcome. CASE PRESENTATION: A 37-year-old active duty male sustained a dislocation and subluxation of the flexor tendons bilaterally after a forced dorsiflexion injury...
October 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/28888906/the-comparison-of-ground-reaction-forces-and-lower-limb-muscles-correlation-and-activation-time-delay-between-forward-and-backward-walking
#10
Mohammadreza Mahaki, Gustavo Souto De Sá E Souza, Raghad Mimar, Marcus Fraga Vieira
This study aimed to compare the ground reaction forces (GRF) and lower limb muscles correlation and activation time delay between Forward (FW) and Backward (BW) walking. Twenty-four male students participated in this research. Electromyogram activities of gluteus medius, biceps femoris, medial gastrocnemius, soleus and anterior tibialis muscles along with GRFs were measured. Each participant performed two FW and two BW trials bare foot. Statistical parametric mapping (SPM) analysis was performed over anterior-posterior and vertical GRFs time series...
October 2017: Gait & Posture
https://www.readbyqxmd.com/read/28883012/fibular-insufficiency-fracture-an-under-reported-complication-of-advanced-tibialis-posterior-dysfunction
#11
Suresh Srinivasan, Harish Kurup
We present a case of fibular insufficiency (stress) fracture in a patient with pre-existing asymptomatic advanced tibialis posterior dysfunction. The patient had severe planovalgus (flat foot) deformity but no pain before the injury; hence had never sought any treatment. She was first treated conservatively for the fracture which failed to control the deformity and had ongoing symptoms. She eventually required tibio-talo-calcaneal fusion. To the best of our knowledge, this is the first case report of this condition in the English literature...
September 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28863723/flexor-digitorum-longus-fdl-or-flexor-hallucis-longus-fhl-harvesting-technical-tip-and-case-studies
#12
Bruce Lehnert, Meir Nyska, Wing Ip, Em Huynh, Ezequiel Palmanovich
BACKGROUND: Harvesting of the flexor digitorum longus (FDL) or the flexor hallucis longus (FHL) is a procedure used when tendon transfer is needed. It is commonly used in tibialis posterior reconstruction and Achilles tendon reconstruction. Harvesting of these tendons is sometimes difficult and time-consuming. It is important to obtain sufficient length to make a loop around the navicular bone or anchor it in the calcaneus. We describe a technique in which a loop is passed from proximal identification of the FDL or FHL through the tendon sheath, harvesting it from a minimal plantar approach...
November 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28840670/-adult-experience-with-the-tibialis-posterior-transposition-to-the-center-of-the-foot-in-neuromuscular-disease
#13
P Parra-Téllez, H Jiménez-López, E López-Gavito, J Vázquez-Escamilla
The transfer of the posterior tibial tendon to the center of the dorsum of the foot is a method used to achieve dorsiflexion in flaccid paralysis of the anterolateral leg muscles or muscular imbalance of clubfoot. OBJECTIVE: To describe functional results back to the surgical procedure for transposition of posterior tibial the center of the foot. MATERIAL AND METHODS: The study design was observational, descriptive, transversal, ambispective with a description of the world of work patients with impaired dorsiflexora foot muscles and impaired gait in the period January 2008 to December 2014...
March 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28818476/complex-anatomic-abnormalities-of-the-lower-leg-muscles-and-tendons-associated-with-phocomelia-a-case-report
#14
Thomas Hodo, Mark Hamrick, Yulia Melenevsky
Musculoskeletal anatomy is widely known to have components that stray from the norm in the form of variant muscle and tendon presence, absence, origin, insertion, and bifurcation. Although these variant muscles and tendons might be deemed incidental and insignificant findings by most, they can be important contributors to pathologic physiology or, more importantly, an option for effective treatment. In the present case report, we describe a patient with phocomelia and Müllerian abnormalities secondary to in utero thalidomide exposure...
November 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28767917/action-of-vanillin-vanilla-planifolia-on-the-morphology-of-tibialis-anterior-and-soleus-muscles-after-nerve-injury
#15
Ana Luiza Peretti, Juliana Sobral Antunes, Keli Lovison, Regina Inês Kunz, Lidyane Regina Gomes Castor, Rose Meire Costa Brancalhão, Gladson Ricardo Flor Bertolini, Lucinéia de Fátima Chasko Ribeiro
Objective: To evaluate the action of vanillin (Vanilla planifolia) on the morphology of tibialis anterior and soleus muscles after peripheral nerve injury. Methods: Wistar rats were divided into four groups, with seven animals each: Control Group, Vanillin Group, Injury Group, and Injury + Vanillin Group. The Injury Group and the Injury + Vanillin Group animals were submitted to nerve injury by compression of the sciatic nerve; the Vanillin Group and Injury + Vanillin Group, were treated daily with oral doses of vanillin (150mg/kg) from the 3rd to the 21st day after induction of nerve injury...
April 2017: Einstein
https://www.readbyqxmd.com/read/28767168/the-possibility-of-free-tissue-transfer-as-a-nutrient-flap-for-critical-ischemic-foot-a-case-report
#16
Kentaro Tanaka, Kimihiro Igari, Mitsuhiro Kishino, Satoshi Usami, Tsutomu Homma, Takahiro Toyofuku, Yoshinori Inoue, Mutsumi Okazaki
Microsurgical procedure of free tissue transfer in critical limb ischemia patients with large ulceration has already been established. The nutrient flap concept was that transferred tissue functioned not only to cover the skin defect but also as a supplementary blood supply to the ischemic lower leg. This report showed the justification for this concept, which was rarely discussed. A 58-year-old male patient with progressive forefoot gangrene caused by arteriosclerosis obliterans was presented. The distal bypass procedure was performed as revascularization surgery, and a latissimus dorsi (LD) myocutaneous flap was transplanted to cover ulceration...
August 2, 2017: Microsurgery
https://www.readbyqxmd.com/read/28763477/spatially-localized-phosphorous-metabolism-of-skeletal-muscle-in-duchenne-muscular-dystrophy-patients-24-month-follow-up
#17
M T Hooijmans, N Doorenweerd, C Baligand, J J G M Verschuuren, I Ronen, E H Niks, A G Webb, H E Kan
OBJECTIVES: To assess the changes in phosphodiester (PDE)-levels, detected by 31P magnetic resonance spectroscopy (MRS), over 24-months to determine the potential of PDE as marker for muscle tissue changes in Duchenne Muscular Dystrophy (DMD) patients. METHODS: Spatially resolved phosphorous datasets were acquired in the right lower leg of 18 DMD patients (range: 5-15.4 years) and 12 age-matched healthy controls (range: 5-14 years) at three time-points (baseline, 12-months, and 24-months) using a 7T MR-System (Philips Achieva)...
2017: PloS One
https://www.readbyqxmd.com/read/28761699/high-intensity-flywheel-exercise-and-recovery-of-atrophy-after-90-days-bed-rest
#18
Daniel L Belavý, Hiroshi Ohshima, Jörn Rittweger, Dieter Felsenberg
AIMS: To investigate differential muscle atrophy during bed-rest, the impact of a high-intensity concentric-eccentric (flywheel) resistance exercise countermeasure and muscle recovery after bed-rest. METHODS: Twenty-five healthy male subjects underwent 90 dayshead-down tilt bed-rest. Volume of individual lower-limb muscles was measured via MRI before, twice during and four times up to 1 year after bed-rest. Subjects were either inactive (n=16) or performed flywheel exercise every third day of bed-rest (n=9)...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/28756605/magnetic-resonance-imaging-of-leg-muscles-in-patients-with-myotonic-dystrophies
#19
Stojan Peric, Ruzica Maksimovic, Bojan Banko, Milica Durdic, Bogdan Bjelica, Ivo Bozovic, Yunus Balcik, Jovan Pesovic, Dusanka Savic-Pavicevic, Vidosava Rakocevic-Stojanovic
Magnetic resonance imaging (MRI) of muscles has recently become a significant diagnostic procedure in neuromuscular disorders. There is a lack of muscle MRI studies in patients with myotonic dystrophy type 1 (DM1), especially type 2 (DM2). To analyze fatty infiltration of leg muscles, using 3.0 T MRI in patients with genetically confirmed DM1 and DM2 with different disease durations. The study comprised 21 DM1 and 10 DM2 adult patients. Muscle MRI was performed in axial plane of the lower limbs using T1-weighted (T1w) sequence...
September 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28726265/how-to-harvest-the-greatest-length-of-tibialis-posterior-tendon-for-tendon-transfer-a-cadaveric-study
#20
Korakot Thamphongsri, Thos Harnroongroj, Atthakorn Jarusriwanna, Bavornrit Chuckpaiwong
In anterior transfer of the tibialis posterior tendon, the tendon was harvested using two incisions, the first at its attachment point on the navicular bone and second on the medial side of the leg above the medial malleolus. To provide the maximum tendon length, the second incision needs to be as proximal as possible but injury to the muscle origin must be avoided. The purpose of this study is to establish the location of the second incision that yields the greatest tendon length. Forty-five unpaired embalmed cadaveric legs were dissected...
July 20, 2017: Clinical Anatomy
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