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extensor tendons

Joseph Château, Aram Gazarian, Fabien Boucher, Lionel Badet, Fabienne Braye, Michel Saint-Cyr, Ali Mojallal
We report a case of a young double-hand allotransplant patient who presented with a full-thickness skin necrosis of the dorsum of the left hand after vascular compromise of the allotransplantation. Considering the lack of viable dorsal tissue overlying the extensor tendons and the need for early hand rehabilitation, an ultrathin pedicled groin flap was used for the coverage. This procedure resulted in salvaging the allotransplantation, and the patient was able to successfully return to work after his surgery...
September 2016: Plastic and Reconstructive Surgery. Global Open
Hui Lu, Hu Yang, Hui Shen, Ganmin Ye, Xiang-Jin Lin
Corticosteroid injections for hand tendinitis can lead to a rare significant complication of tendon spontaneous rupture. However, only sporadic cases were reported in the literature before. This study was designed to gauge the clinical effect of tendon repair in patients of tendon spontaneous rupture after corticosteroid injection and analyze our experience.This was a retrospective observational study of 13 patients (8 women and 5 men) operated between July 2011 and December 2015 for tendon spontaneous rupture after corticosteroid injection...
October 2016: Medicine (Baltimore)
Benjamin Plotkin, Srihari C Sampath, Srinath C Sampath, Kambiz Motamedi
The tendons of the wrist are commonly symptomatic. They can be injured, infected, or inflamed. Magnetic resonance imaging and ultrasonography are useful tools for evaluating the wrist. Pathologic conditions of the wrist tendons include de Quervain tenosynovitis, extensor carpi ulnaris tendinopathy, rheumatoid tenosynovitis, infectious synovitis, tendon tears, hydroxyapatite deposition disease, intersection syndrome, tenosynovial giant cell tumor, and fibroma of the tendon sheath. In this article, we review the normal appearance of the wrist tendons, discuss relevant anatomy, and give an overview of common pathologic conditions affecting the wrist tendons...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Eric A Kirk, Colin W Moore, Eric J Chater-Diehl, Shiva M Singh, Charles L Rice
PURPOSE: Polymorphisms of the collagen type V alpha 1 chain (COL5A1) gene are purported to influence mechanical properties of collagenous tissues. Our purpose was to assess musculo-tendinous contractile properties of the quadriceps in relation to the genetic influence of mechanical stiffness.. METHODS: Eighty, recreationally active males (ages 19-31 y) were assessed for the presence of three genetic polymorphisms associated with COL5A1 stability (rs4919510, rs1536482 and rs12722)...
September 26, 2016: Experimental Physiology
Tun Hing Lui
Extensor tenosynovitis of the wrist can lead to rupture of the extensor tendons. Extensor tenosynovectomy is indicated if the tenosynovitis cannot be controlled by conservative measures. Open tenosynovectomy requires extensive dissection of soft tissue, including the extensor retinaculum. This article describes extensor tendoscopy of the wrist. This technique allows approach to the extensor compartments with small incisions and minimal soft tissue dissection. It is indicated when extensor tenosynovitis persists despite adequate medical treatments including medications, immobilization, and steroid injection...
August 2016: Arthroscopy Techniques
Amyn Rajani, Kumar Kaushik Dash, Neetin P Mahajan, Ritesh Kumar
INTRODUCTION: Patellar tendon rupture can occur due to multiple causes ranging from inflammatory pathologies to episodes of trauma. Extensor mechanism rupture is a rare complication of total knee arthroplasty (TKA). In most of these cases, the failure occurs as avulsion of patellar tendon from tibial tuberosity. We report a rare case with bilateral mid-substance patellar tendon rupture one month after bilateral total knee arthroplasty. CASE PRESENTATION: A 69-year-old male was operated for bilateral grade 4 osteoarthritis...
April 2016: Journal of Orthopaedic Case Reports
Reza Shahryar-Kamrani, Hossein Saremi, Leila Oryadi-Zanjani, Mohammad Hossein Nabian, Azita Amoozadeh, Amir Hossein Moradi
BACKGROUND: Evolving wrist arthroscopy requires creating new portals, and creating portals reciprocally leads to increased indications for arthroscopic wrist procedures. To facilitate access to the lunate bone and fossa for new arthroscopic procedures, a new portal was used. This is a cadaveric study of this portal. OBJECTIVES: In this cadaveric study, we evaluated a portal in wrist arthroscopy for procedures involving the lunate bone and lunate fossa. MATERIALS AND METHODS: Seventeen wrists from 10 fresh cadavers were included in this study...
July 2016: Iranian Red Crescent Medical Journal
Patrick M Kane, Michael P Gaspar, Benjamin B Whiting, Randall W Culp
Background: Background: Pleomorphic hyalinizing angiectatic tumors (PHATs) are extremely rare, non-metastasizing tumors of uncertain origin that are typically seen in the lower extremities. To date, it is estimated that less than 100 cases have been reported worldwide since first described in 1996. Methods: The case of a 35-year-old male with a several-year history of a dorsal hand mass is presented. Although the patient was initially asymptomatic, in the months prior to presentation, the patient complained of pain with power grasp and direct pressure over the mass...
September 2016: Hand: Official Journal of the American Association for Hand Surgery
B Bickert, T Kremer, U Kneser
Closed tendon ruptures of the thumb that require secondary reconstruction can affect the extensor pollicis longus (EPL), extensor pollicis brevis (EPB) and flexor pollicis longus (FPL) tendons. Treatment of rupture of the EPB tendon consists of refixation to the bone and temporary transfixation of the joint. In the case of preexisting or posttraumatic arthrosis, definitive arthrodesis of the thumb is the best procedure. Closed ruptures of the EPL and FPL tendons at the wrist joint cannot be treated by direct tendon suture...
September 30, 2016: Der Unfallchirurg
Z-Hye Lee, J T Stranix, Lavinia Anzai, Sheel Sharma
PURPOSE: De Quervain syndrome or tenosynovitis is a common wrist pathology caused by stenosing tenosynovitis of the first dorsal compartment. Multiple studies have demonstrated significant anatomic variation within the first extensor compartment. METHODS: The terms "De Quervain's tenosynovitis" and "first extensor compartment anatomy" were comprehensively searched using the PubMed, MEDLINE, and Cochrane database. The presence of a septum within the first dorsal compartment, the number of APL (abductor pollicis longus), and EPB (extensor pollicis brevis) tendon slips were identified...
September 9, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
R Obuchowicz, M Bonczar
Lateral elbow pain is often attributed to degenerative or posttraumatic impairment of the common extensor tendon. Ultrasonography assesses the soft tissue structures of the lateral elbow, allowing the differentiation between various underlying processes, including angiofibroblastic degeneration, hyaline degeneration, and inflammation, and exclusion of other possible causes of pain such as posterior interosseous and lateral antebrachial nerve compression. Furthermore, the real-time imaging nature of ultrasonography enables the detection of impingement of the lateral synovial fold, degenerative changes in the elbow recess, and elbow posterolateral instability during dynamic maneuvers...
May 2016: Ultrasound Int Open
Robin Chatterjee, Jay Vyas
Wrist pain due to repetitive motion or overuse is a common presentation in primary care. This case reports the rare condition of intersection syndrome as the cause of the wrist pain in an amateur tennis player. This is a non-infectious, inflammatory process that occurs where tendons in the first extensor compartment intersect the tendons in the second extensor compartment. Suitable history and examination provided the diagnosis, which was confirmed by MRI. Management consisted of early involvement of the multidisciplinary team, patient education, workplace and sporting adaptations, rest, analgesia, reduction of load, protection and immobilisation of the affected joint followed by a period of rehabilitation...
2016: BMJ Case Reports
Simon Butet, Clément Provost, Marylène Jousse, Leila Tlili, Victorine Quintaine, Isabelle Bonan, Alain Yelnik
OBJECTIVE: The positive effects on motor cortical excitability of stimulating proprioception with tendon vibration therapy have previously been reported in healthy individuals and in chronic stroke patient (Marconi et al., 2008 and 2011). The aim of this study is to evaluate the feasibility of a protocol of tendon vibration therapy in a neurorehabilitation service, with a view to proceeding to an efficacy study. MATERIAL/PATIENTS AND METHODS: We performed a prospective, single-centre study, including 11 patients, 8 men, mean age 61,7±10,6, with upper limb motor deficit secondary to a first stroke (5 ischaemic)...
September 2016: Annals of Physical and Rehabilitation Medicine
Christian Fontaine, Xavier Lannes, Aurélien Aumar, Michel-Yves Grauwin, Nadine Nachef, Étienne Allart
OBJECTIVE: The spastic hemiplegic patient often presents dystonia of extensor hallucis longus (EHL) and, more rarely, extensor digitorum longus (EDL). This dystonia is difficult to treat by tendon lengthening, because its primum movens is purely neurological without retraction musculo-tendinous. A hyponeurotisation by partial section of the branches of the common and deep fibular nerve(s) could be a therapeutic alternative to botulinum toxin injections. Its technique has never been described...
September 2016: Annals of Physical and Rehabilitation Medicine
Yong-Taek Yt Lee, Kyung Jae Yoon, Chul-Hyun Ch Park, Joon-Youn Lee
No abstract text is available yet for this article.
September 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
Akira Saito, Ryosuke Ando, Hiroshi Akima
Afferent inputs from Ia fibers in muscle spindles are essential for the control of force and prolonged vibration has been applied to muscle-tendon units to manipulate the synaptic input from Ia afferents onto α-motor neurons. The vastus intermedius (VI) reportedly provides the highest contribution to the low-level knee extension torque among the individual synergists of quadriceps femoris (QF). The purpose of the present study was to examine the effect of prolonged vibration to the VI on force steadiness of the QF...
September 17, 2016: Journal of Electromyography and Kinesiology
John A Karbassi, Andrew Braziel, Peter K Garas, Abhay R Patel
: Open reduction internal fixation of posterior malleolus fractures from a posterior approach is gaining popularity. One concern that has not been studied is the risk of iatrogenic injury to anatomical structures on the anterior ankle. The purpose of this study is to determine the proximity of these anterior structures with relation to K-wires advanced through the anterior cortex. A total of 10 cadaver ankles were utilized in the study. A posterolateral approach to the ankle was used...
September 20, 2016: Foot & Ankle Specialist
A Synek, D H Pahr
The extensor mechanism is a tendinous network connecting intrinsic and extrinsic muscles of the finger and its function has not yet been fully understood. The goal of this study was to assess the effect of the extensor mechanism on the maximum isometric fingertip forces - a parameter which is essential for grasping. For this purpose, maximum fingertip forces in all directions (i.e. feasible force sets) of two musculoskeletal models of the index finger were compared: the wEM model included a full representation of the extensor mechanism, whereas in the noEM model the extensor mechanism was replaced by a single extensor tendon without connectivity to intrinsic muscles...
October 3, 2016: Journal of Biomechanics
Grzegorz Wysiadecki, Michał Polguj, Robert Haładaj, Mirosław Topol
A low origin of the radial artery is a rare anatomical variation, with the incidence estimated at 0.2 %. This report presents a previously unrecorded case of an unusual distal origin of the radial artery, co-occurring with a double recurrent radial artery. The radial artery arose under the pronator teres muscle, 76 mm below the intercondylar line of the humerus. After emerging from under the tendon of the pronator teres muscle, the radial artery took a typical course and terminated in the deep palmar arch...
September 15, 2016: Anatomical Science International
Ali Tabrizi, Ahmadreza Afshar
No abstract text is available yet for this article.
August 2016: Journal of Hand and Microsurgery
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