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flexor digitorum longus

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https://www.readbyqxmd.com/read/29774947/passive-engineering-mechanism-enhancement-of-a-flexor-digitorum-longus-tendon-transfer-procedure
#1
Connor M Pihl, Christina J Stender, Ravi Balasubramanian, Kylie M Edinger, Bruce J Sangeorzan, William R Ledoux
Standard treatments of adult acquired flatfoot deformity (AAFD) fail to correct associated dysfunction of the posterior tibial tendon (PTT). This study aimed to determine if a novel passive engineering mechanism (PEM) enhanced flexor digitorum longus (FDL) tendon transfer procedure would better restore physiologic PTT function to improve AAFD gait parameters compared to standard treatment. We evaluated the kinetic, pedobarographic, and kinematic effects of a pulley-based PEM-enhancement system utilizing a cadaveric flatfoot model and robotic gait simulator...
May 18, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29737368/-minimally-invasive-correction-of-lesser-toe-deformities-and-treatment-of-metatarsalgia
#2
REVIEW
M Thomas, M Jordan
OBJECTIVE: Atraumatic and joint-sparing procedure for the correction of lesser toe deformities by using a linear or perpendicular osteotomy of the proximal and/or middle phalanx of the lesser toes with additional capsulotomies or tendon dissection for soft tissue realignment. Metatarsalgia is addressed via an extracapsular distal metaphyseal crescentic-like metatarsal osteotomy. INDICATIONS: Symptomatic lesser toe deformities, painful pseudoexostosis, metatarsalgia, symptomatic metatarsal malalignment, metatarsus adductus...
May 8, 2018: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/29706721/relationship-between-transverse-arch-height-and-foot-muscles-evaluated-by-ultrasound-imaging-device
#3
Yasuaki Nakayama, Yuto Tashiro, Yusuke Suzuki, Yu Kajiwara, Hala Zeidan, Mirei Kawagoe, Yuki Yokota, Takuya Sonoda, Kanako Shimoura, Masataka Tatsumi, Kengo Nakai, Yuichi Nishida, Tsubasa Bito, Soyoka Yoshimi, Tomoki Aoyama
[Purpose] Few studies on the transverse arch (TA) in the forefoot have been conducted. The forefoot is where pains occur most frequently and is related to walking and balance; hence, paying attention to TA is vital. However, the relationship between TA and foot muscles has not been investigated. Therefore, this study aims to investigate muscles related to TA. [Subjects and Methods] Nineteen healthy young males were included. Measurements of their feet, excluding one foot with recent foot pain (n=37), were obtained...
April 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29665848/characterization-and-utilization-of-the-flexor-digitorum-brevis-for-assessing-skeletal-muscle-function
#4
Michael D Tarpey, Adam J Amorese, Nicholas P Balestrieri, Terence E Ryan, Cameron A Schmidt, Joseph M McClung, Espen E Spangenburg
BACKGROUND: The ability to assess skeletal muscle function and delineate regulatory mechanisms is essential to uncovering therapeutic approaches that preserve functional independence in a disease state. Skeletal muscle provides distinct experimental challenges due to inherent differences across muscle groups, including fiber type and size that may limit experimental approaches. The flexor digitorum brevis (FDB) possesses numerous properties that offer the investigator a high degree of experimental flexibility to address specific hypotheses...
April 17, 2018: Skeletal Muscle
https://www.readbyqxmd.com/read/29657475/incidence-of-tendon-rupture-following-volar-plate-fixation-of-distal-radius-fractures-a-survey-of-2787-cases
#5
Kotaro Sato, Kenya Murakami, Yoshikuni Mimata, Minoru Doita
This study assessed the comprehensive incidence of tendon rupture following volar locking plate (VLP) surgery for a large number of patients with distal radius fractures (DRFs) at multiple facilities in one prefecture, Japan. During the 4-year period, 2787 patients with DRFs underwent fixation using VLP. The overall incidence rates of rupture of the FPL, the extensor pollicis longus, the flexor digitorum profundus of the index finger, and the extensor digitorum communis were 0.35% (10 patients), 0.29% (8 patients), 0...
March 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29627930/flexor-digitorum-longus-tendon-transfer-to-the-navicular-tendon-to-tendon-repair-is-stronger-compared-with-interference-screw-fixation
#6
Daniel Marsland, Joanna M Stephen, Toby Calder, Andrew A Amis, James D F Calder
PURPOSE: To assess whether early rehabilitation could be safe after flexor digitorum longus (FDL) tendon transfer, the current biomechanical study aimed to measure tendon displacement under cyclic loading and load to failure, comparing a traditional tendon-to-tendon (TT) repair with interference screw fixation (ISF). METHODS: 24 fresh-frozen cadaveric below knee specimens underwent FDL tendon transfer. In 12 specimens a TT repair was performed via a navicular bone tunnel...
April 7, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29619350/linburg-comstock-is-overuse-an-etiological-factor
#7
Tugrul Bulut, Mesut Tahta, Tahir Ozturk, Eyup Cagatay Zengin, Cem Ozcan, Muhittin Sener
Background: Linburg-Comstock anomaly is typically defined as a tenosynovial interconnection between flexor pollicis longus and flexor digitorum profundus tendon of the second finger. There are several studies stating that the current anomaly is congenital or acquired. The aim of this study is to reveal whether overuse, which is mostly reported as an acquired etiologic factor, effective in development of the current anomaly. Methods: Three hundred thirteen medical secretaries who work with computer keyboard at least 6 hours a day were defined as study group...
November 2017: Plastic Surgery
https://www.readbyqxmd.com/read/29473094/additional-muscular-slip-of-the-flexor-digitorum-longus-muscle-to-the-fifth-toe
#8
Bojan V Stimec, Jérémy Dash, Mathieu Assal, Richard Stern, Jean H D Fasel
Despite the fact that there are numerous reports on muscular variations in the sole of the foot, routine dissection in a formaldehyde-fixed cadaver revealed an accessory flexor digiti quinti muscle, which to the best of our knowledge is a very unusual variant. This was in the form of a slender, 38 mm long muscular slip, with a proximal and distal tendon extending from the common flexor digitorum longus tendinous plate out to the distal phalanx of the fifth toe. An associated finding was the absence of the musculotendinous portion of the flexor digitorum brevis to the same toe...
May 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29423702/linburg-comstock-variation-histoanatomy-and-classification-of-the-connection-between-flexor-pollicis-longus-and-flexor-digitorum-profundus-to-the-index-finger
#9
Laphatrada Yurasakpong, Krai Meemon, Athikhun Suwannakhan
PURPOSE: The aim of the study was to investigate the anatomy and histology of Linburg-Comstock variation, or the anomalous connection between flexor pollicis longus and flexor digitorum profundus to the index finger, in Thai population. METHODS: One hundred and thirty cadaveric upper limbs were dissected. Skin and superficial fascia on the anterior distal forearm and hand were removed. The tendons of the flexor pollicis longus and flexor digitorum profundus to the index finger were identified for the possible occurrence of the intertendinous connection...
March 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29413791/contributions-of-foot-muscles-and-plantar-fascia-morphology-to-foot-posture
#10
Salih Angin, Karen J Mickle, Christopher J Nester
BACKGROUND: The plantar foot muscles and plantar fascia differ between different foot postures. However, how each individual plantar structure contribute to foot posture has not been explored. The purpose of this study was to investigate the associations between static foot posture and morphology of plantar foot muscles and plantar fascia and thus the contributions of these structures to static foot posture. METHODS: A total of 111 participants were recruited, 43 were classified as having pes planus and 68 as having normal foot posture using Foot Posture Index assessment tool...
March 2018: Gait & Posture
https://www.readbyqxmd.com/read/29409252/arthroscopic-approach-to-the-spring-calcaneonavicular-ligament
#11
T H Lui, C Y D Mak
BACKGROUND: This research studied the safety and efficacy of a new portal to the spring ligament. This portal is located just plantar to the insertion of the posterior tibial tendon and above the fibrous septum between the posterior tibial and the flexor digitorum longus tendons. METHODS: Twelve fresh frozen foot and ankle specimens were used. The distance between the accessory medial portal and the medial plantar nerve was measured. The relation between the medial plantar nerve and the spring ligament was studied...
March 8, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29409178/outcomes-of-flexor-digitorum-longus-fdl-tendon-transfer-in-the-treatment-of-achilles-tendon-disorders
#12
Cesar de Cesar Netto, Apisan Chinanuvathana, Lucas Furtado da Fonseca, Eric J Dein, Eric W Tan, Lew Charles Schon
BACKGROUND: In patients with chronic Achilles tendon disorders, Achilles tendon debridement can be supplemented with a tendon transfer, with the flexor hallucis longus tendon (FHL) transfer representing the most common used technique. Our study describes clinical and functional results of patients treated with flexor digitorum longus (FDL) tendon transfer in the treatment of patients with chronic Achilles tendon disorders. METHODS: Retrospective study of prospectively collected data of thirteen patients (15 feet) that underwent FDL tendon transfer as part of the treatment of chronic Achilles tendon disorders...
December 19, 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29369060/tendon-transfers-to-restore-ankle-dorsiflexion-after-anterior-compartment-myonecrosis-a-case-report
#13
Wesley Zhang Yang, Joseph S Park, Seth Robert Yarboro
CASE: A 47-year-old Caucasian woman spontaneously developed an isolated anterior compartment pressure of >100 mm Hg in the left leg. Despite fasciotomies, the musculature was nonviable and required debridement. Following Achilles tendon lengthening, a posterior tibial tendon (PTT) to anterior tibial tendon (ATT) transfer was supplemented with a flexor digitorum longus tendon transfer to the remaining PTT in order to prevent a flatfoot deformity while restoring active dorsiflexion. CONCLUSION: Preservation of the tendinous portion of the ATT during debridement allowed for transfer of the PTT to the ATT using a modified Pulvertaft transfer...
January 24, 2018: JBJS Case Connector
https://www.readbyqxmd.com/read/29366540/anatomy-of-master-knot-of-henry-a-morphometric-study-on-cadavers
#14
Orhan Beger, Özlem Elvan, Mert Keskinbora, Burçin Ün, Deniz Uzmansel, Zeliha Kurtoğlu
OBJECTIVE: The objective of this study was to evaluate the features of flexor hallucis longus (FHL), flexor digitorum longus (FDL) and flexor digitorum accessorius (FDA) muscles with relevance to the tendon grafts and to reveal the location of Master Knot of Henry (MKH). METHODS: Twenty feet from ten formalin fixed cadavers were dissected, which were in the inventory of Anatomy Department of Medicine Faculty, Mersin University. The location of MKH was identified...
January 20, 2018: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29362151/posterior-tibial-tendon-dysfunction-clinical-and-magnetic-resonance-imaging-findings-having-histology-as-reference-standard
#15
Domenico Albano, Nicolò Martinelli, Alberto Bianchi, Giovanni Romeo, Gaetano Bulfamante, Massimo Galia, Luca Maria Sconfienza
OBJECTIVE: To investigate the correlation between MRI, clinical tests, histopathologic features of posterior tibial tendon (PTT) dysfunction in patients with acquired adult flatfoot deformity surgically treated with medializing calcaneal osteotomy and flexor digitorum longus tendon transposition. MATERIALS AND METHODS: Nineteen patients (11 females; age: 46 ± 15 year, range 18-75) were pre-operatively evaluated using the single heel rise (HR) and the first metatarsal rise (FMR) sign tests...
February 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29345963/deletion-of-estrogen-receptor-%C3%AE-in-skeletal-muscle-results-in-impaired-contractility-in-female-mice
#16
Brittany C Collins, Tara L Mader, Christine A Cabelka, Melissa R Iñigo, Espen E Spangenburg, Dawn A Lowe
Estradiol deficiency in females can result in skeletal muscle strength loss, and treatment with estradiol mitigates the loss. There are three primary estrogen receptors (ERs), and estradiol elicits effects through these receptors in various tissues. Ubiquitous ERα-knockout mice exhibit numerous biological disorders, but little is known regarding the specific role of ERα in skeletal muscle contractile function. The purpose of this study was to determine the impact of skeletal muscle-specific ERα deletion on contractile function, hypothesizing that ERα is a main receptor through which estradiol affects muscle strength in females...
April 1, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29279564/a-case-of-a-giant-cell-tumor-of-the-tendon-sheath-of-the-middle-phalanx-of-the-fourth-toe
#17
Kyochika Okabe, Toshihiko Hoashi, Mariko Asahara, Eiko Esaki, Michiko Ito, Rui Otsuka, Yoko Funasaka, Hidehisa Saeki
Giant cell tumors of the tendon sheath (GCT-TS) are one of the most common tumors of the hand, along with ganglions. However, occurrence in the toes is far less common. Here we present a rare case of GCT-TS at the middle phalanx level of the flexor digitorum longus tendon sheath. Magnetic resonance imaging showed low intensity both on T1 and T2 weighted images. To the best of our knowledge, our case is the first report of a GCT-TS arising at the middle phalanx level of the flexor digitorum longus tendon sheath of the fourth toe...
2017: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/29275614/-wound-repair-and-functional-reconstruction-of-high-voltage-electrical-burns-in-wrists
#18
Y M Shen, C X Ma, F J Qin, C Zhang, C Wang, X H Hu
Objective: To explore the methods and effects of wound repair and functional reconstruction of high-voltage electrical burns in wrists. Methods: From January 2009 to June 2016, 71 patients with high-voltage electrical burns in wrists were hospitalized, with 118 wrist wounds including 21 of type Ⅰ, 69 of type Ⅱ, 9 of type Ⅲ, and 19 of type Ⅳ. According to the wrist injuries, different surgical operations were performed. Forearm amputation was conducted in 20 wrists with necrosis in the distal end. On the basis of fasciotomy for decompression, early debridement was performed on the other 98 wrist wounds...
December 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/29248396/biomechanical-study-comparing-pulvertaft-suture-to-step-cut-suture
#19
A Duprat, L-E Gayet, C Breque, M Freslon
Tendon grafts are a component of the therapeutic arsenal for managing chronic flexor tendons injuries in the hand, especially during two-stage Hunter reconstruction. The purpose of this anatomical study was to compare the strength of the Pulvertaft weave versus the step-cut suture used for flexor tendon reconstruction to determine their role in early active mobilization. We performed a biomechanical study with cadaver specimens. Thirty-four hands were randomized and the tendons from both hands were equally assigned to each group...
February 2018: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/29239782/the-morphology-of-foot-soft-tissues-is-associated-with-running-shoe-type-in-healthy-recreational-runners
#20
Xianyi Zhang, Tijs Delabastita, Joselien Lissens, Floor De Beenhouwer, Benedicte Vanwanseele
OBJECTIVES: To determine the differences in the morphology of foot soft tissues between runners using different types of running shoes. DESIGN: Cross-sectional study. METHODS: Thirty-eight recreational runners were divided into four groups based on running shoe type, namely, neutral shoes, motion control shoes, minimalistic shoes and neutral shoes with custom-made insoles. An arch height index and a relative arch deformation index were calculated for each participant...
November 22, 2017: Journal of Science and Medicine in Sport
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