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Finger flexor tendon

Melkamu Adeb, Daichi Hayashi, Yogesh Kumar
BACKGROUND: Kirner's deformity is a rare bony deformity that is characterized by radial and volar curvature of the distal phalanx of the fifth finger. Affected patients usually present after the age of 5 years, with girls more affected than boys and bilateral involvement more common than unilateral. CASE PRESENTATION: We report a case of an eight-year-old girl who presented with progressive deformity of the right little finger. Radiographic evaluation revealed volar and radial curvature of the distal phalanx of the right fifth digit...
October 21, 2016: BMC Musculoskeletal Disorders
Jimmy Tat, Aaron M Kociolek, Peter J Keir
The most common finding in carpal tunnel syndrome is fibrosis and thickening of the subsynovial connective tissue (SSCT). While the SSCT mediates tendon gliding in the carpal tunnel, this histopathology suggests excessive shear forces are involved in injury development. Ultrasound is often used to quantify relative motion between the finger flexor tendons and SSCT as an indirect measure of "shear-strain"; however, the underlying mechanical implications of using ultrasound are not well understood. The middle flexor digitorum superficialis (FDS) tendon of 8 cadavers was moved in a combination of 2 wrist postures (neutral, flexed), 3 velocities (5, 10, 15cm/s), and 3 forces (10, 20, 30N) to assess ultrasound-based FDS-SSCT relative displacement while simultaneously quantifying tendon frictional work in the carpal tunnel...
October 6, 2016: Journal of Biomechanics
J-D Werthel, M Cortez, B T Elhassan
: Stenosing tenosynovitis or trigger finger is one of the most common disorders that affect the flexor tendon apparatus of the hand. Percutaneous release has been previously reported to be easier, quicker, less invasive and less costly than open surgery. The purpose of this study was to report the outcome of an alternative percutaneous trigger finger release technique. From March 2008 to January 2014, 92 patients (128 fingers) who underwent the alternative percutaneous trigger finger release, with a minimum of 6 months follow-up were included...
June 2016: Hand Surgery and Rehabilitation
Yutaka Mifune, Atsuyuki Inui, Ryosuke Sakata, Yoshifumi Harada, Fumiaki Takase, Masahiro Kurosaka, Takeshi Kokubu
OBJECTIVE: No studies have reported the use of ultrasound for the evaluation of trigger finger after steroid injection. We evaluated the clinical features and ultrasound appearance of trigger finger before and after steroid injection under ultrasound guidance. MATERIALS AND METHODS: Thirty-eight digits with triggering were included. A single steroid injection into the tendon sheath was administered. Ultrasound findings and clinical symptoms, including pain, triggering, and the Quinnell score, were analyzed before injection and at 1 and 3 weeks after injection...
October 8, 2016: Skeletal Radiology
Edward H Wang, William K Loftus, Stephen J Bird, Matthew J Sampson
Lumbrical strain is a relatively unknown hand injury. We report four cases of lumbrical origin strain involving the ring finger flexor tendons. Three patients sustained the injury during rock climbing and one while working with a jackhammer. In all cases, circumferential fluid around the flexor tendons of the ring finger was demonstrated on MRI and/or ultrasound at the distal palmar level at the "bare area," which is normally devoid of a synovial sheath. There is a paucity of information in the literature regarding this injury and its specific imaging features...
October 7, 2016: Skeletal Radiology
James R Seaward, Fiona Peck, Vivien C Lees
Background: Finger flexion is a composite movement involving both long flexors and intrinsic hand muscles. Previous studies have characterized this but have not investigated differences within the normal population. Were discrete finger motion patterns identified, this could guide rehabilitation programs following flexor tendon surgery. Methods: Twelve volunteers repeatedly flexed and extended at a comfortable speed, resting their hand on a horizontal surface. Video was recorded perpendicular to the little finger flexion plane, and the little finger tip position was identified frame by frame to create a composite curve...
September 2016: Hand: Official Journal of the American Association for Hand Surgery
Shepard P Johnson, Kevin C Chung, Lin Zhong, Melissa J Shauver, Michael J Engelsbe, Chad Brummett, Jennifer F Waljee
PURPOSE: To evaluate prolonged opioid use in opioid-naïve patients after common hand surgery procedures in the United States. METHODS: We studied insurance claims from the Truven MarketScan databases to identify opioid-naïve adult patients (no opioid exposure 11 months before the perioperative period) who underwent an elective (carpal tunnel release, carpometacarpal arthroplasty/arthrodesis, cubital tunnel release, or trigger finger release) or trauma-related (closed distal radius fracture fixation, flexor tendon repair, metacarpal fracture fixation, or phalangeal fracture fixation) hand surgery procedure between 2010 and 2012 (N = 77,573 patients)...
September 7, 2016: Journal of Hand Surgery
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
Flavia Coroian, Bertrand Coulet, Claire Jourdan, Olivier Choquet, Isabelle Laffont
OBJECTIVE: The musculotendinous retractions are common complications of central neurological damage with consequences for comfort and function. Treatment of uncomfortable retractions is often surgical, mainly based on tendon gestures. The objective of this study was to evaluate the efficiency of percutaneous needle tenotomy in these indications. MATERIAL/PATIENTS AND METHODS: The indication was accepted at a medical-surgical consultation. Tenotomy was performed using an 18 Gauge needle...
September 2016: Annals of Physical and Rehabilitation Medicine
Ilgin Sade, Murat İnanir, Suzan Şen, Esra Çakmak, Serkan Kablanoğlu, Barin Selçuk, Nigar Dursun
[Purpose] The primary aim of this study was to assess rehabilitation outcomes for early and two-stage repair of hand flexor tendon injuries. The secondary purpose of this study was to compare the findings between treatment groups. [Subjects and Methods] Twenty-three patients were included in this study. Early repair (n=14) and two-stage repair (n=9) groups were included in a rehabilitation program that used hand splints. This retrospective evaluated patients according to their demographic characteristics, including age, gender, injured hand, dominant hand, cause of injury, zone of injury, number of affected fingers, and accompanying injuries...
August 2016: Journal of Physical Therapy Science
Marshall A Kuremsky, Nahir Habet, Richard D Peindl, R Glenn Gaston
PURPOSE: To quantify the distance of the dorsal ulnar sensory branch, floor of the extensor carpi ulnaris (ECU) subsheath, and ulnar neurovascular bundles from the triangular fibrocartilage complex (TFCC), and secondarily to assess the safety of an all-inside arthroscopic repair of the TFCC with a commonly used meniscal repair device with respect to the aforementioned structures. METHODS: A custom K-wire with 1-mm gradation was used to determine the distance of at-risk structures from the periphery of the TFCC in 13 above-elbow human cadaver specimens...
September 7, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
Hiroshi Yamazaki, Shigeharu Uchiyama, Masato Hosaka, Hiroyuki Kato
Closed flexor tendon ruptures in the little finger can be caused by fracture or nonunion of the hook of the hamate, but no case of the disorder secondary to the sclerosis and thinning of the hamate hook has been reported. We report two rare cases with this complication due to rough surface of the hamate hook. Carpal tunnel view radiographs and computed tomography showed the sclerosis and thinning of the hook.
October 2016: J Hand Surg Asian Pac Vol
Christopher M Laine, Akira Nagamori, Francisco J Valero-Cuevas
Voluntary control of force is always marked by some degree of error and unsteadiness. Both neural and mechanical factors contribute to these fluctuations, but how they interact to produce them is poorly understood. In this study, we identify and characterize a previously undescribed neuromechanical interaction where the dynamics of voluntary force production suffice to generate involuntary tremor. Specifically, participants were asked to produce isometric force with the index finger and use visual feedback to track a sinusoidal target spanning 5-9% of each individual's maximal voluntary force level...
2016: Frontiers in Computational Neuroscience
Cosma Calderaro, Matteo Guzzini, Marco Pagnottelli, Mattia Fabbri, Dario Perugia
We report a case of post-traumatic trigger finger due to a partial longitudinal tear of the flexor digitorum superficialis. The suspect came from the clinical history and the young age of the patient. It was successfully treated with tendon flap suture and pulley A1 release.
2016: Case Reports in Plastic Surgery & Hand Surgery
P Hahn, M C Kirchberger, F Unglaub, C K Spies
PURPOSE: Scores are essential for comparing function after flexor tendon reconstructions. The Buck-Gramcko Score, the Strickland Score and the ASSH (American Society for Surgery of the Hand) Score are the most commonly applied rating systems. The purpose of this study is to evaluate these systems and their interchangeability. METHOD: Based on an unrestricted metacarpophalangeal (MCP) joint of 0-0-90° or limited range of motion of the MCP joint of 0-30-90°, the scores of the 3 rating systems were assessed and graphically displayed for each possible finger position regarding proximal (PIP) and distal (DIP) interphalangeal joints...
August 2016: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
Toshihiro Hosokawa, Ryo Oda, Shogo Toyama, Daigo Taniguchi, Daisaku Tokunaga, Hiroyoshi Fujiwara, Toshikazu Kubo
INTRODUCTION: Spontaneous flexor tendon rupture is usually caused by trauma, systemic diseases, or carpal bone and joint disorders. Here we report a case of spontaneous flexor tendon rupture occurring in a systemic lupus erythematosus (SLE) patient following nonunion of the hamate hook after an insufficiency fracture, and which was also associated with tendon degeneration caused by SLE. CASE PRESENTATION: A 57-year-old woman was diagnosed with SLE 22 years ago and being treated with oral prednisolone...
2016: International Journal of Surgery Case Reports
M Manninen, T Karjalainen, J Määttä, T Flinkkilä
BACKGROUND: Flexor tendon injuries cause significant morbidity in working-age population. The epidemiology of these injuries in adult population is not well known. The aim of this study was to describe the epidemiology of flexor tendon injuries in a Northern Finnish population. MATERIAL AND METHODS: Data on flexor tendon injuries, from 2004 to 2010, were retrieved from patient records from four hospitals, which offer surgical repair of the flexor tendon injuries in a well-defined area in Northern Finland...
August 22, 2016: Scandinavian Journal of Surgery: SJS
Dafna Sobel, Naama Constantin, Omer Or
Rock climbing is becoming an increasingly popular sport in Israel with more and more climbing walls being built in the cities and new routes being traced on cliffs around the country. Our account describes the case of a 15 years old climber with chronic pain (without trauma) in the 3rd finger of the right hand. A stress fracture, involving the proximal interphalangeal joint (SH3) of the middle phalanx, was diagnosed. The fracture healed following two months of rest with gradual return to activity. As this sport becomes more common, there is an increasing need for knowledge about the characteristic injuries, their diagnosis and treatment...
June 2016: Harefuah
Donald Lalonde, Amanda Higgins
No abstract text is available yet for this article.
July 2016: Plastic and Reconstructive Surgery. Global Open
Tai-Hua Yang, Szu-Ching Lu, Wei-Jr Lin, Kristin Zhao, Chunfeng Zhao, Kai-Nan An, I-Ming Jou, Pei-Yuan Lee, Li-Chieh Kuo, Fong-Chin Su
BACKGROUND: The flexor digitorum superficialis (FDS) and flexor digitorum profundus (FDP) are critical for finger flexion. Although research has recently focused on these tendons' coactivity, their contributions in different tasks remain unclear. This study created a novel simultaneous approach to investigate the coactivity between the tendons and to clarify their contributions in different tasks. METHODS: Ten human cadaveric hands were mounted on our custom frame with the FDS and FDP of the third finger looped through a mechanical pulley connected to a force transducer...
2016: PloS One
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