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extensor tendons

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https://www.readbyqxmd.com/read/28533851/-giant-cell-tumors-of-the-tendon-sheaths-of-the-hand-about-50-cases
#1
Walid Osman, Zeineb Alaya, Ali Haggui, Mohamed Ben Rejeb, Sonia Jemni, Nader Naouar, Mohamed Laziz Ben Ayeche
Giant cell tumors of the synovial tendon sheaths (GCTSTS) are a localized form of hemopigmented villonodular synovitis. They mainly affect the hands. This study aims to analyse the epidemiology, clinical and therapeutic characteristics of GCTSTS, to assess the results of surgical treatment and to identify risk factors for recurrences. We conducted a retrospective data collection from medical records of 50 patients with GCTSTS of the hand between 1992 and 2016 in the Department of Orthopaedics at the Hospital of Sahloul (Sousse-Tunisia)...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28528818/patellar-tendon-vibration-reduces-the-increased-facilitation-from-quadriceps-to-soleus-in-post-stroke-hemiparetic-individuals
#2
Eric Maupas, Joseph-Omer Dyer, Sibele de Andrade Melo, Robert Forget
BACKGROUND: Stimulation of the femoral nerve in healthy people can facilitate soleus H-reflex and electromyography (EMG) activity. In stroke patients, such facilitation of transmission in spinal pathways linking the quadriceps and soleus muscles is enhanced and related to co-activation of knee and ankle extensors while sitting and walking. Soleus H-reflex facilitation can be depressed by vibration of the quadriceps in healthy people, but the effects of such vibration have never been studied on the abnormal soleus facilitation observed in people after stroke...
May 18, 2017: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/28522238/biomechanical-comparison-of-four-coupled-fixation-systems-for-acl-reconstruction-with-bone-socket-or-full-tunnel-on-the-tibial-side
#3
Edoardo Monaco, Mattia Fabbri, Riccardo Maria Lanzetti, Andrea Del Duca, Luca Labianca, Andrea Ferretti
BACKGROUND: To compare in an animal model the biomechanical properties of four coupled fixation devices currently used in ACL reconstruction. Three out of four devices used a full tibial tunnel with an interference screw, while the other one system used a tibial socket and an adjustable loop suspension device. The null hypothesis is that there are no biomechanical differences between all the techniques tested. METHODS: Thirty two femur-graft-tibia complexes were mounted on a tensile machine using bovine digital extensor tendons, porcine knees and four different fixation device combinations: After a preconditioning with a tensile load of 90N for five minutes, 1000cycles between 0 and 150N were applied to the complex before the final pulled to failure...
May 15, 2017: Knee
https://www.readbyqxmd.com/read/28516887/tenosynovitis-in-rheumatoid-arthritis-patients-on-biologic-treatment-involvement-and-sensitivity-to-change-compared-to-joint-inflammation
#4
Hilde Berner Hammer, Tore K Kvien, Lene Terslev
OBJECTIVES: Extensor carpi ulnaris (ECU) and tibialis posterior (TP) tendons are often involved in RA and the present aim was to examine by ultrasound (US) their frequency of inflammation and sensitivity to change in comparison to joint involvement as well as clinical examinations. METHODS: US, clinical and laboratory assessments were performed when starting biologic DMARD (bDMARD) and after 1, 2, 3, 6 and 12 months including bilateral grey-scale (GS) and power Doppler (PD) semi-quantitatively (0-3) scoring of ECU and TP tendons and 18 joints...
May 15, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28507869/superficial-circumflex-iliac-artery-perforator-flap-for-dorsalis-pedis-reconstruction
#5
Kensuke Tashiro, Shuji Yamashita
Reconstruction of dorsalis pedis with soft tissue is challenging because it needs to preserve thin structure to ensure that the patient will be able to wear shoes. Here, we report the use of a thin superficial circumflex iliac artery perforator (SCIP) flap in dorsalis pedis reconstruction. A 67-year-old man presented with a third-degree burn, which exposed his extensor tendons. A thin SCIP flap from the left inguinal region measuring 15 × 4 cm was transferred to the dorsalis pedis region. Postoperatively, no major cosmetic or functional problems were observed...
April 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28503289/the-three-portal-technique-in-arthroscopic-lateral-epicondylitis-release
#6
Ashok Gowda, Gannon Kennedy, Stacey Gallacher, Jennie Garver, Theodore Blaine
Lateral epicondylitis, commonly referred to as tennis elbow, is a syndrome characterized by pain over the origin of the common extensor muscles of the fingers, hand and wrist at the lateral epicondyle. Reports of 70-90% response to conservative treatment at one year have been documented in the literature though refractory cases often require surgical management. Arthroscopic treatment of lateral epicondylitis allows for intra-articular visualization for concomitant pathology and localization of the Extensor Carpi Radialis Brevis tendon...
November 17, 2016: Orthopedic Reviews
https://www.readbyqxmd.com/read/28484860/anatomic-study-of-the-first-extensor-compartment-and-the-relationship-between-the-extensor-tendon-width-and-its-distal-insertion
#7
Shiro Sugiura, Yusuke Matsuura, Kazuki Kuniyoshi, Satoru Nishikawa, Takeshi Toyooka, Chisato Mori, Takane Suzuki
INTRODUCTION: The extensor pollicis brevis (EPB) tendon normally inserts into the base of the proximal phalanx of the thumb. However, a distal insertion of the EPB tendon into the thumb interphalangeal joint has been reported in refractory cases of de Quervain's disease. We hypothesized that the EPB tendon is wider beyond the thumb metacarpophalangeal joint in patients with extended EPB. This study aimed to evaluate the relationship between the extensor tendon width and the point of distal insertion of the EPB tendon...
May 8, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28469800/erythema-elevatum-diutinum-involving-palms-and-soles-a-case-report-and-literature-review
#8
Uma Keyal, Anil Kumar Bhatta, Yeqiang Liu
Erythema elevatum diutinum (EED) is a rare chronic inflammatory dermatosis and a part of the spectrum of cutaneous leukocytoclasticvasculitis. The most common site of involvement is extensor surface of the extremities, with a predilection for the skin overlying joints, particularly hands, feet, elbows and knees, as well as buttocks and Achilles tendons. Here we report a case of EED with atypical presentation involving palms and soles. The patient showed dramatic response to the treatment with prednisolone combined with Tripterygium wilfordii glycoside (TWP)...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28467583/repair-of-comminuted-fracture-of-the-lower-patellar-pole
#9
Elsayed Ibraheem Elsayed Massoud
BACKGROUND: Comminuted fracture of the lower patellar pole has characteristics of both patellar fracture and avulsion of the patellar tendon. Therefore, components of both injury types should be considered during treatment. None of the traditional techniques has proven sufficient alone. Currently described is technique that incorporates principles of osteosynthesis as well as repair of the patellar tendon. METHODS: Total of 23 patients with comminuted fracture of the lower patellar pole were treated surgically and prospectively followed for 24 months...
March 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28465195/extensor-indicis-proprius-tendon-transfer-using-shear-wave-elastography
#10
J Lamouille, C Müller, S Aubry, S Bensamoun, W Raffoul, S Durand
The means for judging optimal tension during tendon transfers are approximate and not very quantifiable. The purpose of this study was to demonstrate the feasibility of quantitatively assessing muscular mechanical properties intraoperatively using ultrasound elastography (shear wave elastography [SWE]) during extensor indicis proprius (EIP) transfer. We report two cases of EIP transfer for post-traumatic rupture of the extensor pollicis longus muscle. Ultrasound acquisitions measured the elasticity modulus of the EIP muscle at different stages: rest, active extension, active extension against resistance, EIP section, distal passive traction of the tendon, after tendon transfer at rest and then during active extension...
March 7, 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28464800/effect-of-tendon-vibration-during-wide-pulse-neuromuscular-electrical-stimulation-nmes-on-the-decline-and-recovery-of-muscle-force
#11
Vanesa Bochkezanian, Robert U Newton, Gabriel S Trajano, Amilton Vieira, Timothy S Pulverenti, Anthony J Blazevich
BACKGROUND: Neuromuscular electrical stimulation (NMES) is commonly used to activate skeletal muscles and reverse muscle atrophy in clinical populations. Clinical recommendations for NMES suggest the use of short pulse widths (100-200 μs) and low-to-moderate pulse frequencies (30-50 Hz). However, this type of NMES causes rapid muscle fatigue due to the (non-physiological) high stimulation intensities and non-orderly recruitment of motor units. The use of both wide pulse widths (1000 μs) and tendon vibration might optimize motor unit activation through spinal reflex pathways and thus delay the onset of muscle fatigue, increasing muscle force and mass...
May 2, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28462679/thumb-boutonni%C3%A3-re-deformity-without-rheumatoid-arthritis-or-trauma
#12
T Hara, H Yoneda, S Kurimoto, M Yamamoto, K Iwatsuki, H Hirata
Boutonnière deformity of the thumb without rheumatoid arthritis or trauma is not widely recognised. This study aimed to investigate its prevalence, relation to sex and age, and identifying factors associated with the extensor mechanism using ultrasonography. We examined 248 thumbs from 127 participants who were asymptomatic for hand disorders and had no history of hand injury. Boutonnière deformity was identified in 20 thumbs of 17 participants and was significantly more prevalent among elderly participants than among young participants...
April 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28457796/volar-dislocation-of-the-metacarpophalangeal-joint-of-the-thumb-a%C3%A2-case-report
#13
Serdar Yüksel, Oktay Adanır, Ozan Beytemur, Mehmet Akif Gülec
We present an 18 year-old patient with a volar dislocation of the metacarpophalangeal joint of the thumb. Open reduction was performed through a dorsal incision. Because of the soft tissue interposition such as dorsal capsule, volar plate, dislocated extensor pollicis longus and brevis tendons, ruptured ulnar collateral ligament; open reduction, soft tissue and ligament repair are recommended for this type of thumb dislocations.
April 27, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28454779/congenital-extensor-tendon-dislocation-causing-pseudotriggering-of-the-little-finger
#14
Meriç Çırpar, Bülent Dağlar, Birhan Oktaş
The main complaints in extensor tendon dislocations are pain, swelling, sense of discomfort, snapping and difficulty in writing and forceful flexion. However, congenital extensor tendon subluxations may present with triggering of the fingers due to tendon dislocations. Unnecessary A1 pulley release may be performed for pseudotriggerring with unsuccessful results. Here, we report an unusual case of congenital extensor tendon subluxation of multiple digits with triggering of the left little finger and aim to attract notice to pseudotriggering of the digits due to tendon dislocations...
April 25, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28453357/the-diagnosis-and-management-of-mallet-finger-injuries
#15
Gregory A Lamaris, Michael K Matthew
BACKGROUND: Mallet finger is a common injury of the extensor tendon insertion causing an extension lag of the distal interphalangeal joint. METHODS: We reviewed the most current literature on the epidemiology, diagnosis, and management of mallet finger injuries focusing on the indications and outcomes of surgical intervention. RESULTS: Nonoperative management has been advocated for almost all mallet finger injuries; however, complex injuries are usually treated surgically...
May 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28453347/drill-penetration-injury-to-extensor-tendons-a-biomechanical-analysis
#16
Jared M Mahylis, Anora K Burwell, Laura Bonneau, Lynn M Marshall, Adam J Mirarchi
BACKGROUND: Little is known about extensor tendon failure following drill injury at the time of volar plate fixation. Our goals were to analyze extensor tendon injury following simulated drill penetration, and change in tendon displacement during cyclic loading following simulated drill penetration injury. METHODS: Extensor pollicis longus (EPL) and extensor carpi radialis brevis (ECRB) tendons were harvested from 9 fresh frozen cadaveric arms. Eighteen EPL and 18 ECRB samples were created from harvested tendons...
May 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28453346/outcomes-of-surface-replacement-proximal-interphalangeal-joint-arthroplasty-through-a-volar-approach-a-prospective-study
#17
Thomas E Trumble, Dennis J Heaton
BACKGROUND: The dorsal approach to the proximal interphalangeal (PIP) joint provides the advantage of improved visualization of the articular surface, while the disadvantage of a dorsal approach is the disruption of the central slip and extensor mechanism requiring a delay in range of motion exercises. A volar approach keeps the central slip and extensor mechanism intact, allowing for early range of motion. The goal of this study was to evaluate patient outcomes of surface replacement (SR) PIP joint arthroplasty performed through a volar approach...
May 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28453339/the-painful-sacrifice-the-epidemiology-of-hand-injuries-during-the-holy-festivals-in-the-sultanate-of-oman-a-10-year-case-control-study
#18
Sultan Al-Shaqsi, Taimoor Al-Bulushi, Ayman Al-Salmi, Ammar Al-Kashmiri, Ali Al-Lawatti
BACKGROUND: The human hand is an important functional and sensory organ. Its complex anatomy reflects its important functional capabilities. Many Muslim countries observe the holy festivals with a traditional sacrifice of an animal in order to share the meat (basic commodity) with beloved ones. During such festivals hand injuries have been reported to increase. This study aimed to compare cases and controls of hand injuries treated at the national trauma center in the Sultanate of Oman during a 10-year time period...
May 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28444241/cervical-spine-muscle-tendon-unit-length-differences-between-neutral-and-forward-head-postures-biomechanical-study-using-human-cadaveric-specimens
#19
Saeed Khayatzadeh, Olivia A Kalmanson, Dale Schuit, Robert M Havey, Leonard I Voronov, Alexander J Ghanayem, Avinash G Patwardhan
Background: Forward Head Posture (FHP) may be associated with neck pain and poor health-related quality of life. Literature describes only qualitative muscle length changes associated with FHP. Objective: To quantify how muscle-tendon unit lengths are altered when human cadaveric specimens are placed in alignments representing different severities of FHP. Design: Biomechanical study using 13 fresh-frozen cadaveric cervical spine specimens (Occiput-T1, 54±15yrs)...
April 21, 2017: Physical Therapy
https://www.readbyqxmd.com/read/28442856/functional-outcome-of-fixation-of-complex-intra-articular-distal-radius-fractures-with-a-variable-angle-distal-radius-volar-rim-plate
#20
M Spiteri, W Ng, J Matthews, D Power
Aim To evaluate the outcome of these complex fractures using a volar approach and the DePuy Synthes variable-angle 2.4-mm distal radius rim plate. This plate is precontoured to the volar rim for placement distal to the watershed line allowing purchase of the rim fragment of the lunate facet. Its low profile and smooth edges are designed to minimize flexor tendon irritation. Method We report on a consecutive series of far distal AO-23B3 and AO-23C3 fractures treated using this plate in a tertiary hand center between November 2011 and May 2014...
April 2017: Journal of Hand and Microsurgery
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