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Tendon injuries

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https://www.readbyqxmd.com/read/29048929/the-effect-of-hamstring-tendon-autograft-harvest-on-the-restoration-of-knee-stability-in-the-setting-of-concurrent-anterior-cruciate-ligament-and-medial-collateral-ligament-injuries
#1
Thomas J Kremen, Landon S Polakof, Sean S Rajaee, Trevor J Nelson, Melodie F Metzger
BACKGROUND: A hamstring autograft is commonly used in anterior cruciate ligament (ACL) reconstruction (ACLR); however, there is evidence to suggest that the tendons harvested may contribute to medial knee instability. HYPOTHESIS: We tested the hypothesis that the gracilis (G) and semitendinosus (ST) tendons significantly contribute to sagittal, coronal, and/or rotational knee stability in the setting of ACLR with a concurrent partial medial collateral ligament (MCL) injury...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29042331/the-first-experience-of-triple-nerve-transfer-in-proximal-radial-nerve-palsy
#2
Mohammadreza Emamhadi, Sasan Andalib
BACKGROUND: Injury to distal of posterior cord of brachial plexus leads to palsy of the radial and axillary nerves. The symptoms are usually motor deficits of the deltoid muscle, triceps brachii muscle, and the extensor muscles of the wrist, thumb and fingers. Tendon transfers, nerve grafts, and nerve transfers are options of surgical treatment of proximal radial nerve palsy to restore some motor functions. Tendon transfer is painful, requires a long immobilization, and decreases donor muscle strength; nevertheless, nerve transfer produces promising outcome...
October 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29039226/reconstruction-of-traumatic-dorsal-loss-of-the-thumb-four-different-surgical-approaches
#3
Roberto Adani, Raffaele Mugnai, Giovanna Petrella
BACKGROUND: This article outlines our methods for thumb reconstruction following dorsal skin loss injury located between the metacarpophalangeal joint (MPj) and the entire nail affecting skin, nail, tendon, and bone in different combinations but with intact sensate palmar skin. METHODS: Between 1990 and 2015, 24 patients were treated for dorsal thumb defects using 4 different surgical techniques. Five cases of dorsal compound traumatic loss were reconstructed by custom-made dorsal great toe transfer...
October 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29038897/-acute-achilles-tendon-rupture-state-of-the-art
#4
REVIEW
M Braunstein, S F Baumbach, V Herterich, W Böcker, H Polzer
The most favorable treatment for acute Achilles tendon ruptures remains controversial. In particular, three key questions are intensively debated: is operative or non-operative treatment superior? If surgery is performed, should open or minimally invasive percutaneous techniques be used? How should the follow-up treatment be carried out? The aim of this article is to answer these essential questions based on the currently available evidence. Non-operative treatment leads to a higher rate of re-ruptures and inferior functional results when compared to operative treatment...
October 16, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/29037924/-all-inside-arthroscopic-treatment-of-tillaux-chaput-fractures-clinical-experience-and-outcomes-analysis
#5
Shi-Ming Feng, Qing-Qing Sun, Ai-Guo Wang, Cheng-Kun Li
We investigated all-inside ankle arthroscopy for Tillaux-Chaput fractures. We retrospectively evaluated 19 patients (12 males [63.2%] and 7 [36.8%] females; 11 right [57.9%] and 8 left [42.1%] ankles) treated from May 2013 to January 2016. Their mean age was 28.1 (range 10 to 55) years. Sixteen (84.2%) had single Tillaux-Chaput fractures and 3 (15.8%) had combined proximal fibular fractures; 17 (89.5%) were diagnosed radiographically and 2 (10.5%) by computed tomography. Anterolateral and anteromedial ankle arthroscopy was used for closed reduction and internal fixation with 1 or 2 Herbert screws...
October 13, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29032989/functional-outcomes-of-distal-triceps-tendon-repair-comparing-transosseous-bone-tunnels-with-suture-anchor-constructs
#6
John G Horneff, Alexander Aleem, Thema Nicholson, Gregory Lervick, Anand Murthi, Paul Sethi, Charles Getz, Mark D Lazarus, Matthew L Ramsey, Joseph A Abboud, Robert Tashjian
BACKGROUND: Distal triceps tendon ruptures are relatively rare. Few studies have investigated functional outcomes after repair. There is no consensus on fixation methods for this injury. The purpose of this study was to compare the functional outcomes and the reoperation rates after distal triceps tendon repairs using transosseous tunnels and suture anchors. METHODS: A multicenter, retrospective review of all primary triceps repairs done between 2006 and 2015 was performed...
October 9, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29032309/anterior-cruciate-ligament-revision-with-achilles-tendon-allograft-in-young-athletes
#7
S Zaffagnini, A Grassi, G M Marcheggiani Muccioli, T R Di Sarsina, L Macchiarola, M Mosca, M P Neri, M Marcacci
BACKGROUND: Return to sport after revision ACL reconstruction is a controversial topic, several studies reported the results of different techniques and graft in sportsman, presenting an incredibly wide range of return to the same pre-injury activity level, from 0% to 100%. The purpose of this study was to evaluate the clinical outcomes and return to sport rate in young athletes after non anatomic double-bundle revision ACL reconstruction with Achilles allograft. HYPOTHESIS: the present revision technique was effective in terms of stability, return to sport and functional outcomes MATERIAL AND METHODS: All the athletes undergone Revision ACL reconstruction with non-irradiated Achilles tendon allograft with a non-anatomical double-bundle technique were included in the study...
October 12, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29029987/multiple-extensor-tendons-reconstruction-with-hamstring-tendon-grafts-and-flap-coverage-for-severe-dorsal-hand-injuries
#8
M Ozbaydar, O Orman, O Ozel, E Altan
Treatment of patients with traumatic loss of skin and multiple extensor tendons on the dorsum of the hand is a challenge. The aim of this study was to assess the outcome after reconstruction of soft tissues and multiple extensor tendons in patients who suffered traumatic loss of skin and multiple extensor tendons. Ten patients were enrolled in the study. These patients underwent single-stage reconstruction with autogenous hamstring tendon grafts for multiple extensor tendon defects and fasciocutaneous flaps for coverage of dorsal hand defects...
October 10, 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/29027640/the-utility-of-botulinum-toxin-a-in-the-repair-of-distal-biceps-tendon-ruptures
#9
L S Khalil, R A Keller, N Mehran, N E Marshall, K Okoroha, N B Frisch, S P DeSilva
PURPOSE: The purpose of our study is to report the outcomes and complications in patients who underwent distal biceps tendon repair with the use of Botulinum toxin A (BoNT-A) as an adjunct to surgery. METHODS: A retrospective review of 14 patients who underwent 15 distal biceps tendon repairs was performed. All repaired tendons had their correlating muscle bellies injected intraoperatively with a mixture of 100U of BoNT-A and 10 ml of normal saline. Each patient was evaluated for surgical and post-operative complications and followed with Disabilities of the Arm, Shoulder and Hand (DASH) Disability Scores...
October 13, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/29026819/the-role-of-dynamic-ultrasound-in-the-immediate-conservative-treatment-of-volar-plate-injuries-of-the-pip-joint-a-series-of-78-patients
#10
Franck Marie Leclère, Lukas Mathys, Bettina Juon, Esther Vögelin
INTRODUCTION: The management of volar plate avulsion fractures in the context of a stable joint and a bony fragment of less than 30% has traditionally been conservative. This study was performed to assess volar plate healing with high-resolution ultrasound in order to provide early full mobilization. MATERIAL AND METHODS: Between January 2012 and December 2013, 78 patients with volar plate injuries of the proximal interphalangeal (PIP) joints (42 distortions and 36 dislocations) were treated conservatively in our department for volar plate avulsion fracture associated with stable joint and bony fragment inferior to 30% of the intra-articular surface assessed both by radiography and ultrasound...
August 2017: Plastic Surgery
https://www.readbyqxmd.com/read/29026520/work-related-musculoskeletal-injuries-sustained-by-australian-osteopaths-qualitative-analysis-of-effects-on-practitioner-health-clinical-practice-and-patient-care
#11
Gopi Anne McLeod, Katerina Annels, Jessica Cohen, Samuel Edwards, Daniel Hodgins, Brett Vaughan
BACKGROUND: There is limited literature that explores the experiences of osteopaths injured while engaging in clinical practice. Evidence from other similar health professions has described the numerous effects of work-related musculoskeletal injuries (WRMI). Work-related musculoskeletal injury refers to trauma to joints, ligaments, muscles and tendons resulting from injury sustained while undertaking work duties. This research aimed to gain a contextualised understanding of the experiences of osteopaths who have sustained a work-related musculoskeletal injury while performing clinical practice...
2017: Chiropractic & Manual Therapies
https://www.readbyqxmd.com/read/29026107/achilles-tendon-compositional-and-structural-properties-are-altered-after-unloading-by-botox
#12
Hanifeh Khayyeri, Parmis Blomgran, Malin Hammerman, Mikael J Turunen, Annika Löwgren, Manuel Guizar-Sicairos, Per Aspenberg, Hanna Isaksson
Tendon function and homeostasis rely on external loading. This study investigates the biological mechanisms behind tendon biomechanical function and how the mechanical performance is affected by reduced daily loading. The Achilles tendons of 16 weeks old female Sprague Dawley rats (n = 40) were unloaded for 5 weeks by inducing muscle paralysis with botulinum toxin injections in the right gastrocnemius and soleus muscles. The contralateral side was used as control. After harvest, the tendons underwent biomechanical testing to assess viscoelasticity (n = 30 rats) and small angle X-ray scattering to determine the structural properties of the collagen fibrils (n = 10 rats)...
October 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29023489/spatiotemporal-variations-in-gene-expression-histology-and-biomechanics-in-an-ovine-model-of-tendinopathy
#13
Sara Biasutti, Andrew Dart, Margaret Smith, Carina Blaker, Elizabeth Clarke, Leo Jeffcott, Christopher Little
Flexor tendinopathy is a common problem affecting humans and animals. Tendon healing is poorly understood and the outcomes of conservative and surgical management are often suboptimal. While often considered a localized injury, recent evidence indicates that in the short term, tendinopathic changes are distributed widely throughout the tendon, remote from the lesion itself. Whether these changes persist throughout healing is unknown. The aim of this study was to document gene expression, histopathological and biomechanical changes that occur throughout the superficial digital flexor tendon (SDFT) up to 16 weeks post-injury, using an ovine surgical model of tendinopathy...
2017: PloS One
https://www.readbyqxmd.com/read/29022912/tenomodulin-is-essential-for-prevention-of-adipocyte-accumulation-and-fibrovascular-scar-formation-during-early-tendon-healing
#14
Dasheng Lin, Paolo Alberton, Manuel Delgado Caceres, Elias Volkmer, Matthias Schieker, Denitsa Docheva
Tenomodulin (Tnmd) is the best-known mature marker for tendon and ligament lineage cells. It is important for tendon maturation, running performance and has key implications for the resident tendon stem/progenitor cells (TSPCs). However, its exact functions during the tendon repair process still remain elusive. Here, we established an Achilles tendon injury model in a Tnmd knockout (Tnmd(-/-)) mouse line. Detailed analyses showed not only a very different scar organization with a clearly reduced cell proliferation and expression of certain tendon-related genes, but also increased cell apoptosis, adipocyte and blood vessel accumulation in the early phase of tendon healing compared with their wild-type (WT) littermates...
October 12, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29021881/chronic-traumatic-sagittal-band-injury-with-extensor-tendon-dislocation-report-of-a-case-and-new-surgical-technique
#15
S Y Or, Y C Khaw, P X Hwang, T K Ong
Chronic sagittal band injury with tendon dislocation of the extensor digitorum communis in the hand often requires operative stabilization. Various surgical techniques have been reported to repair and reconstruct the sagittal band. Nonetheless, most of the techniques are technically demanding and require donor graft. In this case report, we report a novel surgical technique to centralize and stabilize the tendon by reattaching the radial sagittal band with anchor sutures. The advantages of this new technique are simple, no donor morbidity and stable repair to restore the normal biomechanics of the tendon...
July 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/29020826/redefining-zone-ii-anatomy-of-the-flexor-digitorum-superficialis-insertion
#16
Luke T Nicholson, Jeffrey R Hill, Braden McKnight, Nathanael Heckmann, Milan Stevanovic, Alidad Ghiassi
BACKGROUND: Flexor zone II is defined as the region spanning the proximal aspect of the A1 pulley to the insertion of the flexor digitorum superficialis (FDS) tendon. Descriptions of the FDS insertion are inconsistent in the literature, but zones of injury are frequently determined with reference to superficial landmarks. The purpose of this study was to describe the footprint of the FDS insertion and define its relationship to the proximal interphalangeal (PIP) skin crease. METHODS: The FDS insertion on the index, middle, ring, and small fingers was dissected in 6 matched pairs of fresh-frozen cadaveric hands...
October 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29018992/tenocyte-proliferation-and-migration-promoted-by-rat-bone-marrow-mesenchymal-stem-cell-derived-conditioned-medium
#17
Qiufang Chen, Qingfei Liang, Weixia Zhuang, Jun Zhou, Bingyu Zhang, Pu Xu, Yang Ju, Yasuyuki Morita, Qing Luo, Guanbin Song
OBJECTIVES: To investigate the impact of secreted factors of rat bone marrow mesenchymal stem cells (MSCs) on the proliferation and migration of tenocytes and provide evidence for the development of MSC-based therapeutic methods of tendon injury. RESULTS: Rat bone marrow mesenchymal stem cell-derived conditioned medium (MSC-CM) promoted the proliferation of tenocytes within 24 h and decreased the percentage of tenocytes in G1 phase. MSC-CM activated the extracellular signal-regulated kinase1/2 (ERK1/2) signal molecules, while the ERK1/2 inhibitor PD98059 abrogated the MSC-CM-induced proliferation of tenocytes, decreased the fraction of tenocytes in the G1 phase and elevated p-ERK1/2 expression...
October 10, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/29018907/mri-sport-specific-pulley-imaging
#18
Michael N Hoff, Todd D Greenberg
OBJECTIVE: We aim to create a novel MRI methodology that employs sport-specific stress views for imaging finger pulley injuries in the evaluation of post-operative healing effectiveness. The goal is to measure the bone to tendon distance (BTD), which is the current standard for determining pulley injuries. MATERIALS AND METHODS: The athlete was imaged in a crimp-grip stressed position to emulate sport-specific biomechanics. A Gradient Echo technique was modified to maximize the signal to noise ratio and minimize distortion near the bone and tendon, simplifying the determination of the BTD...
October 10, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29018808/tenogenically-induced-allogeneic-peripheral-blood-mesenchymal-stem-cells-in-allogeneic-platelet-rich-plasma-2-year-follow-up-after-tendon-or-ligament-treatment-in-horses
#19
Charlotte Beerts, Marc Suls, Sarah Y Broeckx, Bert Seys, Aurélie Vandenberghe, Jeroen Declercq, Luc Duchateau, Martin A Vidal, Jan H Spaas
Poor healing of tendon and ligament lesions often results in early retirement of sport horses. Therefore, regenerative therapies are being explored as potentially promising treatment for these injuries. In this study, an intralesional injection was performed with allogeneic tenogenically induced mesenchymal stem cells and platelet-rich plasma 5-6 days after diagnosis of suspensory ligament (SL) (n = 68) or superficial digital flexor tendon (SDFT) (n = 36) lesion. Clinical, lameness and ultrasonographic evaluation was performed at 6 and 12 weeks...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29016187/quantitative-and-qualitative-analysis-of-the-medial-patellar-ligaments-an-anatomic-and-radiographic-study
#20
Bradley M Kruckeberg, Jorge Chahla, Gilbert Moatshe, Mark E Cinque, Kyle J Muckenhirn, Jonathan A Godin, Taylor J Ridley, Alex W Brady, Elizabeth A Arendt, Robert F LaPrade
BACKGROUND: The qualitative and quantitative anatomy of the medial patellar stabilizers has been reported; however, a quantitative analysis of the anatomic and radiographic attachments of all 4 ligaments relative to anatomic and osseous landmarks, as well as to one another, has yet to be performed. PURPOSE: To perform a qualitative and quantitative anatomic and radiographic evaluation of the medial patellofemoral ligament (MPFL), medial patellotibial ligament (MPTL), medial patellomeniscal ligament (MPML), and medial quadriceps tendon femoral ligament (MQTFL) attachment sites, with attention to their relationship to pertinent osseous and soft tissue landmarks...
October 1, 2017: American Journal of Sports Medicine
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