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https://www.readbyqxmd.com/read/28717610/functional-treatment-in-rotator-cuff-tears-is-it-safe-and-effective-a-retrospective-comparison-with-surgical-treatment
#1
Angelo De Carli, Mattia Fabbri, Riccardo Maria Lanzetti, Alessandro Ciompi, Edoardo Gaj, Gioia Beccarini, Mario Vetrano, Andrea Ferretti
BACKGROUND: The aim of this study was to compare rehabilitation protocol and operative treatment in a population of patients with a diagnosis of small to medium rotator cuff tears (≤3 cm), the null hypothesis being that there would been no difference in terms of clinical outcomes and patient's satisfaction between the rehabilitation protocol and the surgical treatment. METHODS: Patients with small to medium supraspinatus tears were retrospectively enrolled in this study and divided in 2 groups: arthroscopic repair (group A, 20 patients) and reinstated (group B, 18 patients)...
January 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28714840/shoulder-strength-requirements-for-upper-limb-functional-tasks-do-age-and-rotator-cuff-tear-status-matter
#2
Anthony C Santago, Meghan E Vidt, Xiaotong Li, Christopher J Tuohy, Gary G Poehling, Michael T Freehill, Katherine R Saul
Understanding upper limb strength requirements for daily tasks is imperative for early detection of strength loss that may progress to disability due to age or rotator cuff tear. We quantified shoulder strength requirements for five upper limb tasks performed by three groups: uninjured young adults and older adults, and older adults with a degenerative supraspinatus tear prior to repair. Musculoskeletal models were developed for each group representing age, sex, and tear-related strength losses. Percentage of available strength used was quantified for the subset of tasks requiring the largest amount of shoulder strength...
July 17, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28707534/fosbury-flop-tear-of-the-rotator-cuff-diagnostic-assessment-with-magnetic-resonance-arthrography
#3
Frank C Kolo, Adrien Jean-Pierre Schwitzguebel, Abed Kourhani, Patrick J Denard, Caecilia Charbonnier, Alexandre Ladermann
OBJECTIVES: The aim was to assess the diagnostic performance of magnetic resonance arthrography (MRA) of the shoulder for the detection of "Fosbury flop" tears. METHODS: All patients undergoing arthroscopic rotator cuff repair were considered as potentially eligible for inclusion in this prospective case series. Preoperative MRAs were consecutively performed and compared with intraoperative findings being the gold standard control. Two experienced musculoskeletal radiologists, blinded to the arthroscopic findings, independently analyzed all MRAs for the presence of typical signs of Fosbury flop tears...
July 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28706969/quantitative-analysis-of-immune-cell-subset-infiltration-of-supraspinatus-muscle-after-severe-rotator-cuff-injury
#4
J R Krieger, L E Tellier, M T Ollukaren, J S Temenoff, E A Botchwey
Rotator cuff tears cause muscle degeneration that is characterized by myofiber atrophy, fatty infiltration, and fibrosis and is minimally responsive to current treatment options. The underlying pathogenesis of rotator cuff muscle degeneration remains to be elucidated, and increasing evidence implicates immune cell infiltration as a significant factor. Because immune cells are comprised of highly heterogeneous subpopulations that exert divergent effects on injured tissue, understanding trafficking and accumulation of immune subpopulations may hold the key to more effective therapies...
June 2017: Regenerative Engineering and Translational Medicine
https://www.readbyqxmd.com/read/28706831/arthroscopic-treatment-of-greater-tuberosity-avulsion-fractures
#5
Jonathan A Godin, J Christoph Katthagen, Erik M Fritz, Jonas Pogorzelski, Peter J Millett
Isolated fractures of the greater tuberosity of the humerus are an uncommon and frequently missed diagnosis. Mistreated and unrecognized, these fractures can cause chronic pain and diminished shoulder range of motion and function. Operative treatment options include open reduction and internal fixation, as well as arthroscopic-assisted reduction and internal fixation. The purpose of this Technical Note is to describe a bridging arthroscopic technique for the treatment of bony avulsions of the supraspinatus tendon...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28704624/a-systematic-review-of-emg-studies-in-normal-shoulders-to-inform-postoperative-rehabilitation-following-rotator-cuff-repair
#6
Peter K Edwards, Jay R Ebert, Chris Littlewood, Tim Ackland, Allan Wang
Study Design Systematic review. Background Electromyography (EMG) has previously been used to guide postoperative rehabilitation progression following rotator cuff repair, to prevent deleterious loading of early surgical repair. Objective To review the current literature investigating EMG during rehabilitation exercises in normal shoulders, to identify exercises that meet a cut point of ≤15% maximal voluntary isometric contraction (MVIC) and unlikely to result in excessive loading in the early postoperative stages...
July 13, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28702388/in-situ-repair-of-partial-articular-surface-lesions-of-the-supraspinatus-tendon
#7
Arildo Eustáquio Paim
OBJECTIVE: To demonstrate the in situ repair technique of high-degree partial-thickness articular surface lesions of the supraspinatus tendon (SS). The procedure consists of the arthroscopic surgical repair of these lesions, without the need to complete the lesion, as occurs in traditional classical technique. A small incision is made in the longitudinal direction of the intact bursal fibers and where bone fixation anchors are introduced, which makes the procedure easier. These anchors are transferred to the tendon and thus enable the repair of the lesion...
May 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28689826/patient-self-assessed-shoulder-comfort-and-function-and-active-motion-are-not-closely-related-to-surgically-documented-rotator-cuff-tear-integrity
#8
Jason E Hsu, Anna Tang, Frederick A Matsen
BACKGROUND: The rationale for rotator cuff repair surgery is that better integrity of the cuff should be associated with better comfort and function. However, in patients with cuff disease, there is not good evidence that the degree of rotator cuff integrity is closely associated with the shoulder's comfort, function, or active motion. The goal of this study was to explore these relationships in shoulders with surgically documented cuff disease. METHODS: In 55 shoulders having surgery for cuff-related symptoms, we correlated the preoperative Simple Shoulder Test score with the objectively measured preoperative active shoulder motion and with the integrity of the cuff observed at surgery...
July 6, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28684147/knotless-transosseous-equivalent-rotator-cuff-repair-improves-biomechanical-self-reinforcement-without-diminishing-footprint-contact-compared-with-medial-knotted-repair
#9
Maxwell C Park, Alexander B Peterson, Michelle H McGarry, Chong J Park, Thay Q Lee
PURPOSE: To assess the effect of medial-row knots on self-reinforcement and footprint contact characteristics for transosseous-equivalent repair compared with the same construct without knots. METHODS: In 8 fresh-frozen human shoulders, transosseous-equivalent repairs with and without medial-row mattress knots were performed in each specimen. A pressure sensor was fixed at the tendon-footprint interface for all repairs. Parameters measured included footprint contact area, force, and pressure...
July 3, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28673118/muscle-recruitment-patterns-of-the-subscapularis-serratus-anterior-and-other-shoulder-girdle-muscles-during-isokinetic-internal-and-external-rotations
#10
Sylvain Gaudet, Jonathan Tremblay, Mickael Begon
The aims of this study were to investigate the differences in peak muscle activity and recruitment patterns during high- and low-velocity, concentric and eccentric, internal and external isokinetic shoulder rotations. Electromyographic activity of the rotator cuff and eight superficial muscles of the shoulder girdle was recorded on 25 healthy adults during isokinetic internal and external shoulder rotation at 60°/s and 240°/s. Peak muscle activity, electromyographic envelopes and peak isokinetic moments were analyzed using three-factor ANOVA and statistical parametric mapping...
July 4, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28670164/texture-analysis-of-torn-rotator-cuff-on-preoperative-magnetic-resonance-arthrography-as-a-predictor-of-postoperative-tendon-status
#11
Yeonah Kang, Guen Young Lee, Joon Woo Lee, Eugene Lee, Bohyoung Kim, Su Jin Kim, Joong Mo Ahn, Heung Sik Kang
OBJECTIVE: To evaluate texture data of the torn supraspinatus tendon (SST) on preoperative T2-weighted magnetic resonance arthrography (MRA) using the gray-level co-occurrence matrix (GLCM) for prediction of post-operative tendon state. MATERIALS AND METHODS: Fifty patients who underwent arthroscopic rotator cuff repair for full-thickness tears of the SST were included in this retrospective study. Based on 1-year follow-up, magnetic resonance imaging showed that 30 patients had intact SSTs, and 20 had rotator cuff retears...
July 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28663377/rat-supraspinatus-tendon-responds-acutely-and-chronically-to-exercise
#12
Sarah Ilkhanipour Rooney, Daniel J Torino, Rachel Baskin, Rameen P Vafa, Andrew F Kuntz, Louis J Soslowsky
The objective of this study was to identify acute responses and chronic adaptations of supraspinatus tendon to non-injurious exercise. We hypothesized that chronic exercise increases tendon mechanical properties, and a single exercise bout increases MMP activity acutely. Rats were divided into acute or chronic exercise (EX) or cage activity (CA) groups. Animals in acute EX groups were euthanized 3, 12, 24, 48, or 72 hours upon completion of a single bout of exercise (10 m/min, 1 hour) on a flat treadmill. Animals in chronic EX groups walked on a flat treadmill for 3 days, 1 week, 2 weeks, or 8 weeks...
June 29, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28661723/differences-of-rna-expression-in-the-tendon-according-to-anatomic-outcomes-in-rotator-cuff-repair
#13
Jin-Ok Ahn, Jin-Young Chung, Do Hoon Kim, Wooseok Im, Sae Hoon Kim
BACKGROUND: Despite increased understanding of the pathophysiology of rotator cuff tears and the evolution of rotator cuff repair, healing failure remains a substantial problem. The critical roles played by biological factors have been emphasized, but little is known of the implications of gene expression profile differences at the time of repair. PURPOSE: To document the relationship between the perioperative gene expression of healed and unhealed rotator cuffs by RNA microarray analysis...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28657192/the-effects-of-age-and-pathology-on-shear-wave-speed-of-the-human-rotator-cuff
#14
Timothy G Baumer, Jack Dischler, Leah Davis, Yassin Labyed, Daniel S Siegal, Marnix van Holsbeeck, Vasilios Moutzouros, Michael J Bey
Rotator cuff tears are common and often repaired surgically, but post-operative repair tissue healing and shoulder function can be unpredictable. Tear chronicity is believed to influence clinical outcomes, but conventional clinical approaches for assessing tear chronicity are subjective. Shear wave elastography (SWE) is a promising technique for assessing soft tissue via estimates of shear wave speed (SWS), but this technique has not been used extensively on the rotator cuff. Specifically, the effects of age and pathology on rotator cuff SWS are not well known...
June 28, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28643102/post-operative-rotator-cuff-integrity-based-on-sugaya-s-classification-can-reflect-abduction-muscle-strength-of-the-shoulder
#15
Masahito Yoshida, Phillipe Collin, Thierry Josseaume, Alexandre Lädermann, Hideyuki Goto, Katumasa Sugimoto, Takanobu Otsuka
PURPOSE: Magnetic resonance (MR) imaging is common in structural and qualitative assessment of the rotator cuff post-operatively. Rotator cuff integrity has been thought to be associated with clinical outcome. The purpose of this study was to evaluate the inter-observer reliability of cuff integrity (Sugaya's classification) and assess the correlation between Sugaya's classification and the clinical outcome. It was hypothesized that Sugaya's classification would show good reliability and good correlation with the clinical outcome...
June 22, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28642649/allogeneic-platelet-rich-plasma-for-rotator-cuff-repair
#16
Chris Hyunchul Jo, Ji Sun Shin, Seung Yeon Lee, Sue Shin
OBJECTIVE: To investigate the safety and efficacy of allogeneic platelet-rich plasma (PRP) in rotator cuff repair . METHODS: Seventeen patients with a full-thickness rotator cuff tear were included. Ten patients underwent arthroscopic rotator cuff repair with allogeneic, and seven patients with autologous PRP. Three PRP gels in a volume 3 ml each were applied between the torn end and the greater tuberosity. Clinical outcomes were assessed preoperatively and at a minimum of 2 years after surgery...
January 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28641171/electromyographic-analysis-of-rotator-cuff-muscles-in-patients-with-rotator-cuff-tendinopathy-a-systematic-review
#17
REVIEW
Fábio Carlos Lucas de Oliveira, Laurent Julien Bouyer, Amanda L Ager, Jean-Sébastien Roy
The shoulder is inherently an unstable joint which heavily relies on the neuromuscular activation of the rotator cuff (RC) complex for stability during movement. Currently, there is no consensus regarding how the activity of RC muscles is affected among individuals with a RC tendinopathy (RCTe). This study reviewed the evidence of studies comparing the electromyographic (EMG) activity of any RC muscle of shoulders with a symptomatic RCTe to asymptomatic shoulders. Eight databases were searched. Data from 343 participants (201 symptomatic and 209 asymptomatic shoulders) were analyzed from 10 out of 402 included studies...
August 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28630752/acromion-and-glenoid-shape-why-are-they-important-predictive-factors-for-the-future-of-our-shoulders
#18
Richard W Nyffeler, Dominik C Meyer
The shape of the acromion differs between patients with degenerative rotator cuff tears and individuals without rotator cuff pathology.It can be assessed in the sagittal plane (acromion type, acromion slope) and in the coronal plane (lateral acromion angle, acromion index, critical shoulder angle).The inter-observer reliability is better for the measurements in the coronal plane.A large lateral extension (high acromion index or high critical shoulder angle) and a lateral down-sloping of the acromion (low lateral acromion angle) are associated with full-thickness supraspinatus tears...
May 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28624239/functional-outcome-and-healing-of-large-and-massive-rotator-cuff-tears-repaired-with-a-load-sharing-rip-stop-construct
#19
Matthew P Noyes, Alexandre Ladermann, Patrick J Denard
PURPOSE: To prospectively review functional outcomes and healing rates of large and massive rotator cuff tears repaired with a load-sharing rip-stop (LSRS) technique. METHODS: Twenty-one consecutive patients underwent arthroscopic rotator cuff repair with an LSRS construct between January and December 2014. Seventeen patients with a minimum of 2 years' follow-up were included. Four patients did not complete clinical evaluations and functional outcome scores at a minimum of 2 years' follow-up and were lost to follow-up...
June 14, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28623414/tenodesis-is-not-superior-to-tenotomy-in-the-treatment-of-the-long-head-of-biceps-tendon-lesions
#20
Roberto Castricini, Filippo Familiari, Marco De Gori, Daria Anna Riccelli, Massimo De Benedetto, Nicola Orlando, Olimpio Galasso, Giorgio Gasparini
PURPOSE: To compare the effectiveness of tenodesis and tenotomy in the treatment of long head of the biceps tendon (LHBT) lesions. The null hypothesis was that there is no difference in functional scores between the tenotomy and tenodesis groups. METHODS: A total of 69 patients with a combined supraspinatus tear and LHBT lesion aged over 40 years entered this prospective comparative study and were randomly assigned to the arthroscopic LHB tenotomy or tenodesis group...
June 16, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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