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flexor digitorum longus

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https://www.readbyqxmd.com/read/27904023/early-embryonic-development-of-long-tendons-in-the-human-foot
#1
Masahito Yamamoto, Yasuhiro Shiraishi, Kei Kitamura, Zhe Wu Jin, Gen Murakami, Jose Francisco Rodríguez-Vázquez, Shin-Ichi Abe
To examine a common plantar tendinous plate for long flexors of the toe and fingers in human embryos, we observed sections of 10 embryos at 5-6 weeks (crown-rump length or CRL 15-21 mm). The heel or tuber of the calcaneus was underdeveloped in 3 embryos with CRL 15 mm and the talus appeared not to be piled up on the calcaneus but these two bones were arranged along the lateromedial axis. As reported in the hand, we demonstrated, in the deep side of tarsal bones, a common tendinous plate formed by a joining of the flexor halluces longus and flexor digitorum longus tendons...
2016: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/27866885/surgical-planning-for-flexor-digitorum-longus-tendon-transfers-an-anatomic-study
#2
Jeffrey E McAlister, Shyler L DeMill, Eric So, Christopher F Hyer
Posterior tibial tendon dysfunction is often coupled with various degrees of hindfoot valgus and equinus. Preoperative planning is essential to appropriate procedure choice and surgical efficiency. The purpose of the present study was to assess the anatomy at the harvest site for flexor digitorum longus tendon transfer, specifically at the master knot of Henry. Thirty fresh-frozen below-the-knee cadavers were used for dissection. A standard anatomic approach was performed for posterior tibial tendon debridement and flexor digitorum longus tendon transfer...
November 17, 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27842935/surgical-treatment-results-for-flexible-flatfoot-in-adolescents
#3
Necip Selcuk Yontar, Tahir Ogut, Mehmet Fatih Guven, Huseyin Botanlioglu, Gokhan Kaynak, Ata Can
OBJECTIVE: Idiopathic flexible pes planus (IFPP) is a common foot problem in adolescents and young adults. Hypothesis for the present study was that combination of procedures for IFPP can achieve results in adolescents and young adults that are as good as those seen in adult-acquired pes planovalgus (AAPP) treatment in adults. METHODS: A total of 21 feet of 18 patients (10 boys, 8 girls) with mean age of 15.6 years underwent surgical reconstruction for flatfoot deformity...
November 11, 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27836497/flexor-tendon-complications-in-comminuted-distal-radius-fractures-treated-with-anatomic-volar-rim-locking-plates
#4
Adnan Kara, Haluk Celik, Yunus Oc, Metin Uzun, Mehmet Erdil, Cihangir Tetik
OBJECTIVE: Anatomic volar rim locking plates are designed with the aim of treating intraarticular distal radius fractures. When used to treat comminuted distal radius fractures, these plates can damage the flexor tendons. In this study, we sought to determine the radiological and functional results and rate of complications of these plates. METHODS: We retrospectively reviewed the records of 36 patients (28 males, 8 females; mean age: 46.4 years) with AO/OTA Type C2-C3 distal radius fractures treated with anatomic volar rim distal radius plates between January 2011 and December 2014...
November 8, 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27830875/oblique-cord-chorda-obliqua-of-the-forearm-and-muscle-associated-fibrous-tissues-at-and-around-the-elbow-joint-a-study-of-human-fetal-specimens
#5
Zhe Wu Jin, Yu Jin, Masahito Yamamoto, Hiroshi Abe, Gen Murakami, Ting Feng Yan
In adults, the oblique cord or chorda obliqua separates the origins of the flexor pollicis longus (FPL) and flexor digitorum profundus (FDP) muscles from the supinator muscle and elbow joint. This study examined the topographic anatomy of the oblique cord and related muscles in fetuses. Semiserial sections of five mid-term fetuses of gestational age (GA) 14-16 weeks and 12 late-stage fetuses of GA 28-30 weeks were histologically examined and three forearms at GA 30 weeks were macroscopically evaluated. Late-stage fetuses showed a fascial structure between the supinator and FDP muscles...
November 10, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27822290/dietary-selenium-augments-sarcoplasmic-calcium-release-and-mechanical-performance-in-mice
#6
Dóra Bodnár, Olga Ruzsnavszky, Tamás Oláh, Beatrix Dienes, Ildikó Balatoni, Éva Ungvári, Ilona Benkő, Beáta Babka, József Prokisch, László Csernoch, Péter Szentesi
BACKGROUND: As an essential trace element selenium plays a significant role in many physiological functions of the organs. It is found within muscles as selenocystein in selenoprotein N, which is involved in redox-modulated calcium homeostasis and in protection against oxidative stress. METHODS: The effects of two different selenium compounds (selenate and NanoSe in 0.5 and 5 ppm concentration for two weeks) on muscle properties of mice were examined by measuring in vivo muscle performance, in vitro force in soleus (SOL) and extensor digitorum longus (EDL) muscles and changes in intracellular Ca(2+) concentration in single fibers from flexor digitorum brevis (FDB) muscle...
2016: Nutrition & Metabolism
https://www.readbyqxmd.com/read/27796190/postoperative-physical-therapy-management-of-tendon-transfer-for-digital-wrist-extension-due-to-multifocal-motor-neuropathy
#7
Steve Volpe
Study Design Case report. Background Multifocal motor neuropathy is a progressive motor nerve disorder characterized by muscle weakness in the extremities. Muscle imbalance and weakness can become so severe that the involved extremity can be rendered nonfunctional. The purpose of this case report is to describe the physical therapy postoperative management of a patient who underwent a multiple tendon transfer to correct the loss of digital/wrist extension of the right upper extremity. Case Description A 38-year-old woman with a medical diagnosis of multifocal motor neuropathy, which caused muscle imbalance and weakness in the right hand, underwent a multiple tendon transfer to correct the loss of digit and wrist extension...
December 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27781995/spontaneous-flexor-tendon-rupture-secondary-to-capitate-non-union-a-case-report-and-review-of-literature
#8
N Chahidi, M Rousié
Rupture of the flexor digitorum profundus and superficialis tendons of the index finger secondary to non-union of the capitate has not yet been reported to our knowledge. We describe the case of a 48-year-old man with rupture of both flexor tendons of the index finger that occurred 15 years after a capitate fracture. The patient was completely asymptomatic before the rupture. Tendon reconstruction was performed using the palmaris longus. One year after surgery, the patient had acceptable range of motion and was pain-free...
September 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27764110/inferring-muscle-tendon-unit-power-from-ankle-joint-power-during-the-push-off-phase-of-human-walking-insights-from-a-multiarticular-emg-driven-model
#9
Eric C Honert, Karl E Zelik
INTRODUCTION: Inverse dynamics joint kinetics are often used to infer contributions from underlying groups of muscle-tendon units (MTUs). However, such interpretations are confounded by multiarticular (multi-joint) musculature, which can cause inverse dynamics to over- or under-estimate net MTU power. Misestimation of MTU power could lead to incorrect scientific conclusions, or to empirical estimates that misguide musculoskeletal simulations, assistive device designs, or clinical interventions...
2016: PloS One
https://www.readbyqxmd.com/read/27744576/return-to-sport-activities-after-medial-displacement-calcaneal-osteotomy-and-flexor-digitorum-longus-transfer
#10
F G Usuelli, C A Di Silvestri, R D'Ambrosi, C Maccario, E W Tan
PURPOSE: Medial displacement calcaneal osteotomy with flexor digitorum longus transfer is a common treatment for the management of the adult flatfoot associated with posterior tibial tendon dysfunction. In the literature, there is a paucity of information regarding the ability of patients to return to sport and recreational activities after this surgical procedure. The purpose of this retrospective clinical study was to assess the rate and type of athletic activities that patients participated in before and after medial displacement calcaneal osteotomy with flexor digitorum longus transfer...
October 15, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27684281/murine-flexor-tendon-injury-and-repair-surgery
#11
Jessica E Ackerman, Alayna E Loiselle
Tendon connects skeletal muscle and bone, facilitating movement of nearly the entire body. In the hand, flexor tendons (FTs) enable flexion of the fingers and general hand function. Injuries to the FTs are common, and satisfactory healing is often impaired due to excess scar tissue and adhesions between the tendon and surrounding tissue. However, little is known about the molecular and cellular components of FT repair. To that end, a murine model of FT repair that recapitulates many aspects of healing in humans, including impaired range of motion and decreased mechanical properties, has been developed and previously described...
2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27682306/how-often-absence-of-palmaris-longus-and-functional-deficiencyof-flexor-digitorum-superficialis-occurs
#12
N Vučinić, M Erić, M Savić
This study was designed to find a possible correlation between the presence of the palmaris longus and function of the fifth flexor digitorum superficialis. We examined 300 participants to assess the absence of palmaris longus and flexor digitorum superficialis function by several clinical tests. Overall absence of palmaris longus, was seen in 157 participants (52.3%). Overall deficiency of flexor digitorum superficialis was noted in 100 participants (33.3%). In 15 participants (5%) we noted bilateral absence of palmaris longus and flexor digitorum superficialis deficiency...
August 2016: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/27640930/medial-displacement-calcaneal-osteotomy-a-comparison-of-screw-versus-locking-plate-fixation
#13
Amol Saxena, Rajan Patel
Locking plate fixation is becoming more popular for fixation of lower extremity osteotomies. The present study evaluated locking plate fixation compared with screw fixation in the medial displacement calcaneal osteotomy procedure, measuring the outcomes and rate of hardware removal. The procedure was performed on 30 patients, 31 times, with 17 undergoing single screw fixation and 14 undergoing locking plate fixation. The return to activity was 6.87 ± 1.43 months, including some patients for whom running was their main activity...
September 15, 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27604511/bilateral-posterior-tibial-tendon-and-flexor-digitorum-longus-dislocations-a-case-report
#14
Eric M Padegimas, David M Beck, David I Pedowitz
: The authors present a case of a previously healthy and athletic 17-year-old female who presented with a 3.5-year history of medial left ankle pain after sustaining an inversion injury while playing basketball. Prior to presentation, she had failed prior immobilization and physical therapy for a presumed ankles sprain. Physical examination revealed a dislocated posterior tibial tendon (PTT) that was temporarily reducible, but would spontaneously dislocate immediately after reduction...
September 7, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27589967/tarsal-tunnel-disease-and-talocalcaneal-coalition-mri-features
#15
Erin FitzGerald Alaia, Zehava Sadka Rosenberg, Jenny T Bencardino, Gina A Ciavarra, Ignacio Rossi, Catherine N Petchprapa
OBJECTIVE: To assess, utilizing MRI, tarsal tunnel disease in patients with talocalcaneal coalitions. To the best of our knowledge, this has only anecdotally been described before. MATERIALS AND METHODS: Sixty-seven ankle MRIs with talocalcaneal coalition were retrospectively reviewed for disease of tendons and nerves of the tarsal tunnel. Interobserver variability in diagnosing tendon disease was performed in 30 of the 67 cases. Tarsal tunnel nerves were also evaluated in a control group of 20 consecutive ankle MRIs...
November 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27466802/muscle-mri-of-the-upper-extremity-in-the-myotonic-dystrophy-type-1
#16
Kouji Hayashi, Tadanori Hamano, Yasutaka Kawamura, Hirohiko Kimura, Akiko Matsunaga, Masamichi Ikawa, Osamu Yamamura, Tatsuro Mutoh, Itsuro Higuchi, Masaru Kuriyama, Yasunari Nakamoto
BACKGROUND: The purpose of this study was to explore the relation between muscle MRI findings and weakness of the upper extremity muscles in patients with myotonic dystrophy type 1 (DM1). METHODS: Nineteen DM1 patients from 15 families were enrolled in this study. Muscle weakness was evaluated using the modified Medical Research Council scale. Subjects also underwent a genetic study and muscle MRI of the upper extremities. RESULTS: In patients with DM1, the flexor digitorum profundus (FDP), flexor pollicis longus, flexor digitorum superficialis (FDS), extensor pollicis, abductor pollicis longus (APL), lateral head of triceps brachii and infraspinatus (INF) muscles were frequently and severely affected...
2016: European Neurology
https://www.readbyqxmd.com/read/27387084/tendon-transfers-in-the-rheumatoid-hand-for-reconstruction
#17
REVIEW
Michael Brody O'Sullivan, Hardeep Singh, Jennifer Moriatis Wolf
Long-standing rheumatoid arthritis can result in spontaneous tendon rupture caused by attrition of the tendons. Ruptures of the ulnar-sided extensor tendons, flexor pollicis longus, and the flexor digitorum profundus can be seen. Primary repair of these tendon ruptures is frequently not possible because of delayed presentation and tendon damage by the disease process. Tendon transfers are the preferred method of treatment in patients with rheumatoid arthritis. At surgery, it is critical to address the underlying cause of rupture to prevent future tendon ruptures...
August 2016: Hand Clinics
https://www.readbyqxmd.com/read/27351189/-concept-of-plantarization-for-toe-correction-in-diabetic-foot-syndrome
#18
G Engels, H Stinus, D Hochlenert, A Klein
OBJECTIVE: Elimination of plantarization of the tip of the toe and torsion of digit 1 (D1) or D5 using percutaneous tenotomy of the flexor hallucis longus (FHL) - or the flexor digitorum longus (FDL) muscle. INDICATIONS: Flexible, in some cases also fixated hyperflexion misalignment and torsion misalignment of the distal phalanx of the toe with plantarization of physiologically non-loaded bearing parts of the toes in patients with diabetic foot syndrome (neuropathy)...
October 2016: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/27301725/-coxa-pedis-today
#19
G Pisani
UNLABELLED: Coxa pedis is the talocalcaneonavicular joint and is the distal enarthrosis of the lower limb. It is defined coxa because of: (1) the enarthrosic meaning from an anatomical point of view, (2) the analogy to the hip. The stabilising devices are structural, passive and active; the corresponding pathology is the "Coxa pedis destabilising syndrome". During walking, release and stiffening of the foot are related to the opening and closure of the kinetic chain of the coxa pedis: it is mutually reversible, while opening is a passive event, closure is an active one...
June 2016: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27291681/posterior-ankle-structure-injury-during-total-ankle-replacement
#20
Christopher W Reb, Jeffrey E McAlister, Christopher F Hyer, Gregory C Berlet
Total ankle replacement studies have focused on reporting complications that are directly observed clinically or radiographically, including wound problems, technical errors, implant loosening, subsidence, infection, bone fractures, and heterotopic ossification. However, patients can still experience unresolved pain even when these problems have been ruled out. We initiated a study to more clearly define the relative risk of injury to the anatomic structures in the posterior ankle during total ankle replacement using a third-generation implant system...
September 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
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