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Tendon extensor

Jordi Vega, Daniel Poggio, Nasser Heyrani, Francesc Malagelada, Matteo Guelfi, Aida Sarcon, Miki Dalmau-Pastor
PURPOSE: Tendon grafts are often utilized for reconstruction of the lateral ligaments unamenable to primary repair. However, tendon and ligaments have different biological roles. The anterior tibiofibular ligament's (ATiFL) distal fascicle may be resected without compromising the stability of the ankle joint. The aim of this study is to describe an all-arthroscopic and intra-articular surgical technique of ATiFL's distal fascicle transfer for the treatment of chronic ankle instability...
March 19, 2019: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Panagiotis Kouloumentas, Efstratios Kavroudakis, Efstathios Charalampidis, Dimitris Kavroudakis, Georgios K Triantafyllopoulos
PURPOSE: To compare the "all-inside technique" for anterior cruciate ligament (ACL) reconstruction using a short, quadrupled semitendinosus tendon (ST4) autograft and suspensory cortical fixation on both the femoral and tibial side vs the "conventional technique" using a semitendinosus/gracilis (ST/G) autograft fixed with a suspensory device on the femoral side and with an interference screw on the tibial side, in terms of clinical and functional outcomes. METHODS: A total of 90 patients were enrolled, randomised into two groups, and prospectively followed...
March 19, 2019: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Zoë Joostens, Laurence Evrard, Valeria Busoni
Lifting the contralateral forelimb (unipodal stance) is often used as a method of restraint in horses. This experimental one group pretest, posttest study was conducted to evaluate the effects of unipodal stance on quantitative radiographic parameters in equine forefeet. Seven nonlame horses were randomly selected. Lateromedial (LM) and dorsopalmar (DP) projections were acquired for both forefeet, squarely placed on blocks, using two X-ray generators. Radiographs of each foot were acquired first in a bipodal stance, immediately followed by the same radiographic projections obtained in a unipodal stance...
March 12, 2019: Veterinary Radiology & Ultrasound
Andrea Monte, Paola Zamparo
In this study we investigated the relationships between muscle-tendon parameters and average/peak values of velocity, force and power in sprint running focusing on the acceleration phase. Eighteen male sprinters (100 m PB: 10.66±0.51 s) participated to the study. Instantaneous values of horizontal velocity (v) were recorded by means of a radar and instantaneous values of force (F) and power (P) were calculated based on these data. Muscle thickness, fascicle length and pennation angle of knee extensors and plantar flexors, as well as Achilles tendon length and CSA, were measured by means of ultrasonography...
2019: PloS One
Ahmed Abogamal, Saad Ghanem, Hatem Saad
OBJECTIVE: Is to evaluate the simplicity of 90° flexion/neutral position for ultrasonography assessment of both common extensor and common flexor origins in comparison with the standard position. MATERIAL AND METHODS: A standard questionnaire was distributed on 50 trainees, rheumatologists with No previous experience or training in ultrasonography. (They) were attending musculoskeletal training workshops at AL-Azhar rheumatology department musculoskeletal ultrasonography unit in 2016...
March 7, 2019: Advances in rheumatology
Magdalena Krajewska-Włodarczyk, Agnieszka Owczarczyk-Saczonek, Waldemar Placek, Maja Wojtkiewicz, Andrzej Wiktorowicz, Joanna Wojtkiewicz
The aim of the study was an ultrasound assessment of distal interphalangeal (DIP) joint enthesopathy in patients with nail psoriasis. Altogether, 72 patients with nail psoriasis (41 with psoriasis and 31 with psoriatic arthritis) and 30 people in the control group participated in the study. In total, 1014 nails were examined. The thickness of DIP digital extensor tendons in the groups of patients with psoriasis (Ps) and psoriatic arthritis (PsA) was correlated with the nail bed thickness (r = 0.316, p = 0...
March 6, 2019: Scientific Reports
Hamadi A Murphy, Viral V Jain, Shital N Parikh, Eric J Wall, Roger Cornwall, Charles T Mehlman
BACKGROUND: Extensor pollicis longus (EPL) tendon injury following the dorsal approach to elastic stable intramedullary nailing (ESIN) of the radius has been reported in a growing number of cases in the literature. This study includes 5 new cases from our institution as well as a comprehensive review of previously reported cases from the literature. METHODS: We conducted a retrospective chart review of all patients undergoing ESIN between January 1, 2004 and December 31, 2013 at our institution...
April 2019: Journal of Pediatric Orthopedics
Naoufal Elghoul, Youssef Jalal, Ayoub Bouya, Ali Zine, Abdeloihab Jaafar
Almost 2% of all emergency admissions involve an animal bite. While horses bite humans very rarely, their bites are mostly associated with fatalities. Herein, we report the case of a 23-year old bitten by a domestic horse causing a crush injury to his fourth finger with fracture dislocation of the proximal interphalangeal joint. The patient benefited upon arrival at the emergency department from copious irrigation with saline serum, tetanus toxoid, postexposure rabies vaccination, and prophylactic antibiotic therapy...
2019: Case Reports in Infectious Diseases
M Swaisi, Y Igeta, R Pavalache, P Vernet, S Facca, J J Hidalgo Diaz, P Liverneaux
Arthrodesis of the thumb metacarpophalangeal (MCP) joint usually leads to satisfying results when performed with an open technique. The main complication is adhesion of the extensor tendons that sometimes requires hardware removal associated with tenolysis. The goal of this study was to assess whether a minimally invasive technique could reduce the risk of this complication. Arthrodesis of the thumb MCP was performed using an open technique with a locking plate or compression pins in 12 cases (group I) and using a minimally invasive technique with compression pins or screws in 12 cases, for a total of 24 patients aged 48...
February 25, 2019: Hand Surgery and Rehabilitation
Lisa Galletti, Vincenzo Ricci, Ernesto Andreoli, Stefano Galletti
Medial knee pain is common in clinical practice and can be caused by various conditions. In rare cases, it can even be by calcific bursitis of the medial collateral ligament (MCL). Treatment of calcific bursitis and/or calcification of the MCL classically includes observation, local injections, shockwave therapy and surgical resection. We report a case of nontraumatic medial knee pain poorly responsive to conservative treatments. Ultrasound (US) imaging revealed a massive lobed hyperechoic formation with partial acoustic shadow in the MCL context compatible with calcific bursitis, and magnetic resonance imaging (MRI) confirmed the presence of the bursa's calcific deposit surrounded by hyperintense signal compatible with pericalcific edema...
February 27, 2019: Journal of Ultrasound
Rachel Pedreira, Nicholas A Calotta, E Gene Deune
BACKGROUND: Lower extremity reconstruction is challenging because of the need to restore form and function. Despite the many options for soft-tissue coverage, little research has addressed combined tendon and soft-tissue reconstitution. We present a series of patients undergoing lower extremity tendon reconstruction and wound coverage with a single free gracilis flap and its tendon. METHODS: We studied five patients (age range, 51-81 years) undergoing lower limb reconstruction for defects involving soft tissue and tendon between 1998 and 2016 in the senior author's practice...
February 27, 2019: Microsurgery
Bin Liu, Jia Chang Tan, Hui Lin Wang, Zhenjie Wu, Zhen Chao Yuan, Chang Yuan Wei
PURPOSE: The aim of this study was to evaluate the role of mesh technique in the reconstruction of the extensor mechanism after resection of proximal tibial tumors. METHODS: We retrospectively analyzed the cases of 14 patients who were diagnosed with proximal tibial tumors at our center and reconstructed with tumor prosthesis, gastrocnemius muscle, and mesh between 2012 and 2017. The treatment strategies for patellar tendon reconstruction primarily involve gastrocnemius reconstruction to cover the tumor prosthesis and mesh reconstruction for the patellar ligament...
February 26, 2019: Journal of Orthopaedic Surgery and Research
M F Langer, S Oeckenpöhler, C K Spies, J G Grünert, S Breiter, J Glasbrenner, B Wieskötter
OBJECTIVE: Elimination of pain or instability by arthrodesis of the thumb joint in functional position by dorsal plateosteosynthesis. INDICATIONS: Painful primary or secondary arthrosis of the thumb, nonreconstructable ulnar, radial or palmar instability, posttraumatic dislocation, defect injuries, bone tumors in the region of the thumb metacarpophalangeal joint. CONTRAINDICATIONS: Local infection of the thumb metacarpophalangeal joint area...
February 26, 2019: Operative Orthopädie und Traumatologie
Taojin Xu, Zhongwei Jiang, Jongyeob Jeong, Minoru Morita, Hongbin Xu
To improve or maintain the physical function of bedridden patients, appropriate and effective exercises are required during the patient's bed rest. Resistance training (RT) is an effective exercise for improving the physical function of bedridden patients, and the improvement of the physical function is caused by mechanical stimuli associated with RT. Currently, the measured mechanical stimuli are external variables which represent the synthetic effect of multiple muscles and body movements. Important features of stimuli experienced by muscles are of crucial importance in explaining muscular strength and power adaptation...
2019: Journal of Healthcare Engineering
Nathalie Van Beek, Dick F Stegeman, Ilse Jonkers, Chris L de Korte, DirkJan Veeger, Huub Maas
With aging, hand mobility and manual dexterity decline, even under healthy circumstances. To assess how aging affects finger movement control, we compared elderly and young subjects with respect to (1) finger movement independence, (2) neural control of extrinsic finger muscles and (3) finger tendon displacements during single finger flexion. In twelve healthy older (age 68-84) and nine young (age 22-29) subjects, finger kinematics were measured to assess finger movement enslaving and the range of independent finger movement...
February 19, 2019: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
Mineyuki Zukawa, Ryusuke Osada, Tomoatsu Kimura
We report a rare case of radial dislocation of the extensor tendon over the metacarpophalangeal (MCP) joint of the thumb. Ulnar dislocation has been reported, but previous reports have not mentioned radial dislocation of the extensor tendon in the thumb. Radial dislocation of the extensor tendon of the thumb gradually progressed after cerebral hemorrhage and the patient could not extend MCP joint of the thumb. To resolve difficulty in extending the MCP joint, surgical centralization of the extensor tendon and partial resection of the flexor pollicis brevis (FPB) and abductor pollicis brevis (APB) insertions was performed...
March 2019: Journal of Hand Surgery Asian-Pacific Volume
Bryan G Beutel, Eitan Melamed
Combined simultaneous radial wrist extensor injuries, namely ipsilateral extensor carpi radialis longus (ECRL) and brevis (ECRB) avulsion fractures, are rare. While non-operative management with cast immobilization has been described, most recommend operative intervention in the acute setting. Surgical repair of chronic injuries, however, has received little attention in the literature. This case describes a 50-year-old male who sustained combined ipsilateral ECRL and ECRB avulsion fractures from the bases of the index and middle metacarpals...
March 2019: Journal of Hand Surgery Asian-Pacific Volume
Robert M Barker-Davies, Andrew Roberts, James Watson, Polly Baker, Alexander N Bennett, Daniel T P Fong, Patrick Wheeler, Mark P Lewis
BACKGROUND: Knee valgus alignment has been associated with lower-limb musculoskeletal injury. This case-control study aims to: assess biomechanical differences between patients with patellar tendinopathy and healthy controls. METHODS: 43 military participants (21 cases, 22 controls) were recorded using 3D-motion capture performing progressively demanding, small knee bend, single leg and single leg decline squats. Planned a priori analysis of peak: hip adduction, knee flexion, pelvic tilt, pelvic obliquity and trunk flexion was conducted using MANOVA...
February 4, 2019: Clinical Biomechanics
Dimitrios Kitridis, Georgia Bei, Konstantinos Dogramatzis, Panagiotis Givissis
Introduction: Traumatic and atraumatic rupture of the extensor pollicis longus (EPL) tendon has been described as a result of mechanical or biological stresses. Common mechanisms include fractures of the distal radius, rheumatoid arthritis, local injection of steroids, and repetitive motion activities at the wrist. Case Report: We report a case involving the spontaneous rupture of the EPL tendon in a relative of a deceased person who carried her coffin in a wrong way with no other predisposing factors...
September 2018: Journal of Orthopaedic Case Reports
Gerardo L Garcés, Oscar Martel, Alejandro Yánez, Alberto Cuadrado
BACKGROUND: The purpose of this study was to compare the biomechanical behaviour of two bioabsorbable interference screws with different geometries. METHODS: Two different pitch (2.5 and 5 mm) bioabsorbable interference screws, both 9 × 30 mm, were tested. Tests were performed with forty bovine digital extensor tendons and skeletally mature porcine tibiae. Two protocols of cyclic tests at 1 Hz were performed: 1000 cycles from 50 to 250 N, and 5000 cycles from 100 to 300 N (n = 10 for each type of test and screw)...
February 8, 2019: BMC Musculoskeletal Disorders
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