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Tendon tears

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https://www.readbyqxmd.com/read/28319248/cyclic-tensile-strain-enhances-human-mesenchymal-stem-cell-smad-2-3-activation-and-tenogenic-differentiation-in-anisotropic-collagen-glycosaminoglycan-scaffolds
#1
W G Grier, A S Moy, B A Harley
Stem cell research arose from the need to explore new therapeutic possibilities for intractable and lethal diseases. Although musculoskeletal disorders are basically nonlethal, their high prevalence and relative ease of performing clinical trials have facilitated the clinical application of stem cells in this field. However, few reliable clinical studies have been published, despite the plethora of in vitro and preclinical studies in stem cell research for regenerative medicine in the musculoskeletal system...
March 20, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28318302/isolated-subscapularis-repair-in-irreparable-posterosuperior-massive-rotator-cuff-tears-involving-the-subscapularis-tendon
#2
Sung-Jae Kim, Yun-Rak Choi, Min Jung, Won-Yong Lee, Yong-Min Chun
BACKGROUND: No previous study has examined whether isolated subscapularis tendon repair in irreparable posterosuperior massive rotator tears involving the subscapularis tendon in relatively young patients without arthritis can yield satisfactory outcomes. HYPOTHESIS: We hypothesized that this procedure would produce favorable outcomes in patients who might otherwise be candidates for reverse arthroplasty. STUDY DESIGN: Case series; Level of evidence, 4...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28298067/incidence-of-second-anterior-cruciate-ligament-tears-1990-2000-and-associated-factors-by-geographic-locale
#3
Nathan D Schilaty, Nathaniel A Bates, Thomas L Sanders, Aaron J Krych, Michael J Stuart, Timothy E Hewett
BACKGROUND: Second anterior cruciate ligament (ACL) tears after reconstruction occur at a reported rate of 20% to 30%. This high frequency indicates that there may be factors that predispose an athlete to graft failure and ACL tears of the contralateral knee. PURPOSE: To determine the incidence of second ACL injuries in a geographic population-based cohort over a 10-year observation period. STUDY DESIGN: Descriptive epidemiological study. METHODS: International Classification of Diseases, 9th Revision (ICD-9) codes relevant to the diagnosis of an ACL tear and the procedure code for ACL reconstruction were searched across the Rochester Epidemiology Project, a multidisciplinary county database, between the years of 1990 and 2000...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28290117/what-influence-does-progression-of-a-nonhealing-rotator-cuff-tear-have-on-shoulder-pain-and-function
#4
Yoon Sang Jeon, Rag Gyu Kim, Sang-Jin Shin
BACKGROUND: There have been numerous reports of clinical outcomes associated with tendon healing after repair that suggest a nonhealed tendon has a negative effect on postoperative clinical outcomes. However, to our knowledge, there has been no report on the relationship between tear size progression of nonhealed tendons and clinical outcomes. QUESTIONS/PURPOSES: (1) Do patients with healed arthroscopic rotator cuff repairs have better outcomes, less pain, and more strength than patients whose repair did not heal? (2) In patients with nonhealed rotator cuff tendons, does tear size progression (increase or decrease) affect outcomes, pain, and strength? (3) Is there continued improvement beyond 6 months in outcomes, pain, and strength; and how do the improvements differ based on whether the tear size has increased or decreased? METHODS: Between May 2008 and December 2012, 647 patients underwent arthroscopic rotator cuff repair for full-thickness tears at our institution...
March 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28276991/evaluation-of-common-elbow-pathologies-a-focus-on-physical-examination
#5
Joseph Laratta, Jon-Michael Caldwell, Joseph Lombardi, William Levine, Christopher Ahmad
Elbow tendinopathy accounts for the majority of elbow pathology in patients presenting to upper extremity and sports medicine surgeons. With increased participation in overhead sports in an aging population, the incidence of elbow injuries has risen. A comprehensive knowledge of elbow anatomy and biomechanical function of the elbow complex is prerequisite in the assessment of patients with elbow injuries; however, a thorough understanding of alternative and confounding pathologies is essential for accurate diagnosis...
February 22, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28272927/muscle-degeneration-associated-with-rotator-cuff-tendon-release-and-or-denervation-in-sheep
#6
Christian Gerber, Dominik C Meyer, Martin Flück, Paola Valdivieso, Brigitte von Rechenberg, Mario C Benn, Karl Wieser
BACKGROUND: The effect of an additional neurological injury (suprascapular nerve traction injury) to a chronically retracted rotator cuff muscle is incompletely understood and warrants clarification. PURPOSE: To investigate the microscopic and macroscopic muscle degeneration patterns caused by tendon release and/or muscle denervation in a sheep rotator cuff model. STUDY DESIGN: Controlled laboratory study. METHODS: Infraspinatus muscle biopsy specimens (for histological analysis) were obtained from 18 Swiss alpine sheep before and 16 weeks after release of the infraspinatus tendon (tenotomy [T] group; n = 6), transection of the suprascapular nerve (neurectomy [N] group; n = 6), or tendon release plus nerve transection (tenotomy + neurectomy [T&N] group; n = 6)...
March 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28272899/longitudinal-long-term-magnetic-resonance-imaging-and-clinical-follow-up-after-single-row-arthroscopic-rotator-cuff-repair
#7
Philipp R Heuberer, Daniel Smolen, Leo Pauzenberger, Fabian Plachel, Sylvia Salem, Brenda Laky, Bernhard Kriegleder, Werner Anderl
BACKGROUND: The number of arthroscopic rotator cuff surgeries is consistently increasing. Although generally considered successful, the reported number of retears after rotator cuff repair is substantial. Short-term clinical outcomes are reported to be rarely impaired by tendon retears, whereas to our knowledge, there is no study documenting long-term clinical outcomes and tendon integrity after arthroscopic rotator cuff repair. PURPOSE: To investigate longitudinal long-term repair integrity and clinical outcomes after arthroscopic rotator cuff reconstruction...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28271933/peroneus-quartus-muscle-autografta-novel-approach-to-the-repair-of-a-split-peroneus-brevis-tendon-tear
#8
Scott Carlis, Daniel Pollack, Shaylyn McTeague, Greg Khaimov
This case report highlights a novel approach to strengthening the repair of a split peroneus brevis tendon tear with a peroneus quartus muscle autograft. We describe a 51-year-old woman with a longitudinal split tear of the peroneus brevis tendon confirmed by magnetic resonance imaging. Intraoperatively, a peroneus quartus muscle was appreciated, resected, and used as an autograft in the repair of the peroneus brevis tendon. Use of a peroneus quartus muscle as an autograft in peroneal tendon repair has not been documented in the literature, to our knowledge...
January 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28271082/preliminary-results-of-a-consecutive-series-of-large-massive-rotator-cuff-tears-treated-with-arthroscopic-rotator-cuff-repairs-augmented-with-extracellular-matrix
#9
Paolo Consigliere, Ioannis Polyzois, Tanaya Sarkhel, Rohit Gupta, Ofer Levy, A Ali Narvani
BACKGROUND: Recurrence rate of rotator cuff tears is still high despite the improvements of surgical techniques, materials used and a better knowledge of the healing process of the rotator cuff tendons. Large to massive rotator cuff tears are particularly associated with a high failure rate, especially in elderly. Augmentation of rotator cuff repairs with extracellular matrix or synthetic patches has gained popularity in recent years with the aim of reducing failure. The aim of this study was to investigate the outcome of rotator cuff repairs augmented with denatured extracellular matrix in a series of patients who underwent arthroscopic rotator cuff repair for large to massive tears...
January 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28267909/-functional-evaluation-of-the-supraspinatus-tendon-repair-comparing-mini-open-and-open-techniques
#10
C R Mejía-Salazar, M Sierra-Pérez, M Ruiz-Suárez
OBJECTIVE: To compare two surgical techniques to address the painful shoulder syndrome with partial or total supraspinous tendon tear. METHODS: Patients with a diagnosis of complete supraspinous tendon tear who required surgical repair and subacromial decompression. One group was treated with acromioplasty and tendon plasty using an open approach (G1), and the second one underwent arthroscopy with tendon plasty using a minimally-invasive approach (G2). The surgical approach was not decided at random, but was based on the surgeons preference...
July 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28266690/lengthening-primary-cilia-enhances-cellular-mechanosensitivity
#11
G-I Im
Stem cell research arose from the need to explore new therapeutic possibilities for intractable and lethal diseases. Although musculoskeletal disorders are basically nonlethal, their high prevalence and relative ease of performing clinical trials have facilitated the clinical application of stem cells in this field. However, few reliable clinical studies have been published, despite the plethora of in vitro and preclinical studies in stem cell research for regenerative medicine in the musculoskeletal system...
February 21, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28263673/demystifying-the-clinical-diagnosis-of-greater-trochanteric-pain-syndrome-in-women
#12
Charlotte Ganderton, Adam Semciw, Jill Cook, Tania Pizzari
OBJECTIVE: To evaluate the diagnostic accuracy of 10 clinical tests that can be used in the diagnosis of greater trochanteric pain syndrome (GTPS) in women, and to compare these clinical tests to magnetic resonance imaging (MRI) findings. MATERIALS AND METHODS: Twenty-eight participants with GTPS (49.5 ± 22.0 years) and 18 asymptomatic participants (mean age ± standard deviation [SD], 52.5 ± 22.8 years) were included. A blinded physiotherapist performed 10 pain provocation tests potentially diagnostic for GTPS-palpation of the greater trochanter, resisted external derotation test, modified resisted external derotation test, standard and modified Ober's tests, Patrick's or FABER test, resisted hip abduction, single-leg stance test, and the resisted hip internal rotation test...
March 6, 2017: Journal of Women's Health
https://www.readbyqxmd.com/read/28261304/the-influence-of-different-footprint-preparation-techniques-on-tissue-regeneration-in-rotator-cuff-repair-in-an-animal-model
#13
Andreas Ficklscherer, Michaela Serr, Thomas Loitsch, Thomas R Niethammer, Matthias Lahner, Matthias F Pietschmann, Peter E Müller
INTRODUCTION: Rotator cuff tears are common diseases of the upper extremity. There are no recommendations to the surgeon on how to prepare the footprint to ensure optimal tendon-to-bone healing. However, biologic augmentation using stem cells and growth factors is considered to encourage the healing process of the tendon. The aim of the study was to investigate the biomechanical and histological outcome of different footprint preparations in rotator cuff repair. MATERIAL AND METHODS: One hundred and eighty-nine Sprague-Dawley rats were randomly assigned to either spongialization, radiofrequency ablation or an untreated control group...
March 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28258946/achilles-impingement-tendinopathy-on-magnetic-resonance-imaging
#14
Mark J Bullock, Jan Mourelatos, Alice Mar
Haglund's syndrome is impingement of the retrocalcaneal bursa and Achilles tendon caused by a prominence of the posterosuperior calcaneus. Radiographic measurements are not sensitive or specific for diagnosing Haglund's deformity. Localization of a bone deformity and tendinopathy in the same sagittal section of a magnetic resonance imaging scan can assist with the diagnosis in equivocal cases. The aim of the present cross-sectional study was to determine the prevalence of Haglund's syndrome in patients presenting with Achilles tendinopathy and note any associated findings to determine the criteria for a diagnosis of Haglund's syndrome...
February 28, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28255656/influence-of-patient-and-diagnostic-parameters-on-reported-retear-rates-after-arthroscopic-rotator-cuff-repair
#15
Andreas M Müller, Matthias Flury, Hasan N Alsayed, Laurent Audigé
PURPOSE: The purpose of this meta-analysis was to investigate patient and diagnostic parameters influencing the reported rates of recurrent rotator cuff defects after ARCR. METHODS: PubMed, EMBASE, Cochrane Library and Scopus databases were searched for clinical studies on tendon defects after ARCR. Imaging modalities, definitions, detection time points, and other known patient risk factors (patient age, tear severity, grade of fatty infiltration, repair technique) as well as reported defect rates were extracted...
March 2, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28251005/pectoralis-major-tear-with-retracted-tendon-how-to-fill-the-gap-reconstruction-with-hamstring-autograft-and-fixation-with-an-interference-screw
#16
L Baverel, K Messedi, G Piétu, V Crenn, F Gouin
Rupture of the pectoralis major tendon is considered an uncommon injury and a significant number of ruptures are missed or diagnosed late, leading to a chronic tear. We report an open reconstruction technique and its outcomes in a case of chronic and retracted PM tear. At the last follow-up (12 months), the patient was pain-free, with a visual analogic scale at 0 all the time. He was very satisfied concerning the cosmetic and clinical results. The constant score was 93%, the SST value 95%, and the Quick DASH score 4...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28240676/bilateral-patellar-tendon-tears-after-a-fall-from-standing-position
#17
Atzmon Tsur, Marina Deeb, Nael Shakeer, Norman Loberant
No abstract text is available yet for this article.
February 24, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28238963/surgical-repair-of-massive-rotator-cuff-tendon-tears-autologous-quadriceps-tendon-graft-versus-arthroscopic-repair
#18
C Tempelaere, P Desmoineaux, F Lespagnol, J Pierrart, P Beaufils, N Pujol
INTRODUCTION: Massive rotator cuff tear repair results are variable. The main purpose of this study was to compare functional outcome between two procedures: open repair by autologous quadriceps-patella tendon patch, and arthroscopic suture. The study hypothesis was that there is no significant difference in results between the two techniques. MATERIAL AND METHODS: A retrospective study included all patients younger than 70 years operated on from 1995 to 2013 for massive rotator cuff tear...
February 24, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28237073/predictors-of-outcomes-after-rotator-cuff-repair-a-meta-analysis
#19
Jayaprakash Raman, David Walton, Joy C MacDermid, George S Athwal
STUDY DESIGN: Systematic review. INTRODUCTION: Clinical outcomes associated with rotator cuff repair (RCR) are generally favorable, but no study has attempted to establish a set of predictors that affect outcomes. PURPOSE OF STUDY: This study aims to statistically analyze articles and establish a set of predictors that affect outcomes after RCR. METHODS: An electronic literature search of multiple databases was conducted to identify studies that addressed prognosis after RCR...
February 22, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28219360/interobserver-and-intraobserver-agreement-of-ligamentous-injuries-on-conventional-mri-after-simple-elbow-dislocation
#20
Marc Schnetzke, Svenja Schüler, Johannes Hoffend, Rainer Simon, Holger Keil, Felix Porschke, Stefan Studier-Fischer, Paul-Alfred Grützner, Thorsten Guehring
BACKGROUND: The primary objective of this study was to assess the interobserver and intraobserver agreement on ligamentous injuries on conventional magnetic resonance imaging (MRI) in acute simple elbow dislocation. The secondary objectives were to determine the interobserver agreement on the assessment of joint congruity, joint effusion, loose bodies and chondral lesions on conventional MRI. METHODS: Conventional MRIs (1.5 Tesla, elbow specific surface coil) of 30 patients (40...
February 20, 2017: BMC Musculoskeletal Disorders
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