scholarly journals The Critical Shoulder Angle is Associated with Osteoarthritis in the Shoulder but Not Rotator Cuff Tears. A Retrospective Case Control Study

2017 ◽  
Vol 33 (10) ◽  
pp. e53-e54 ◽  
Author(s):  
Kristoffer Weisskirchner Barfod ◽  
Arnar Oskar Bjarnison ◽  
Thomas Kallemose ◽  
Thomas Juul Sørensen
Keyword(s):  
Rotator Cuff ◽  
Case Control Study ◽  
Case Control ◽  
Rotator Cuff Tears ◽  
Retrospective Case ◽  
Critical Shoulder Angle ◽  
Control Study ◽  
Shoulder Angle

scholarly journals Genetics of rotator cuff tears: no association of col5a1 gene in a case-control study

2018 ◽  
Vol 19 (1) ◽  
Author(s):  
Umile Giuseppe Longo ◽  
Katia Margiotti ◽  
Stefano Petrillo ◽  
Giacomo Rizzello ◽  
Caterina Fusilli ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Case Control Study ◽  
Case Control ◽  
Rotator Cuff Tears ◽  
Control Study

scholarly journals Performance After Rotator Cuff Tear and Operative Treatment: A Case-Control Study of Major League Baseball Pitchers

2011 ◽  
Vol 46 (3) ◽  
pp. 296-302 ◽  
Author(s):  
Surena Namdari ◽  
Keith Baldwin ◽  
Albert Ahn ◽  
G. Russell Huffman ◽  
Brian J. Sennett
Keyword(s):  
Rotator Cuff ◽  
Operative Treatment ◽  
Case Control Study ◽  
Major League Baseball ◽  
Case Control ◽  
Rotator Cuff Tears ◽  
Performance Variables ◽  
Major League ◽  
Rotator Cuff Surgery ◽  
Control Study

Context: Little is known about pitching performance or lack of it among Major League Baseball (MLB) pitchers who undergo operative treatment of rotator cuff tears. Objective: To assess pitching performance outcomes in MLB players who needed operative treatment of rotator cuff tears and to compare performance in these athletes with that in a control group of MLB players. Design: Case-control study. Setting: Publicly available player profiles, press releases, and team injury reports. Patients or Other Participants: Thirty-three MLB pitchers with documented surgery to treat rotator cuff tears and 117 control pitchers who did not have documented rotator cuff tears were identified. Main Outcome Measure(s): Major League Baseball pitching attrition and performance variables. Results: Players who underwent rotator cuff surgery were no more likely not to play than control players. Performance variables of players who underwent surgery improved after surgery but never returned to baseline preoperative status. Players who needed rotator cuff surgery typically were more experienced and had better earned run averages than control players. Conclusions: Pitchers who had symptomatic rotator cuff tears that necessitated operative treatment tended to decline gradually in performance leading up to their operations and to improve gradually over the next 3 seasons. In contrast to what we expected, they did not have a greater attrition rate than their control counterparts; however, their performances did not return to preoperative levels over the course of the study.

Functional outcome following arthroscopic repair of massive rotator cuff tears is equal to smaller rotator cuff tears: a retrospective case–control study

2020 ◽  
pp. 175857322092504
Author(s):  
Jun M Leow ◽  
Oliver Krahelski ◽  
Oisin JF Keenan ◽  
Nicholas D Clement ◽  
Julie M McBirnie
Keyword(s):  
Rotator Cuff ◽  
Case Control Study ◽  
Rotator Cuff Tears ◽  
Retrospective Case ◽  
Oxford Shoulder Score ◽  
One Year ◽  
Cuff Repair ◽  
Control Study ◽  
Shoulder Score

Background There is a paucity of studies comparing patient-reported outcomes of arthroscopic massive rotator cuff repairs against non-massive rotator cuff repairs. The aim of this study is to assess the Quick Disabilities of the Arm, Shoulder and Hand questionnaire and Oxford Shoulder Score at a minimum of one-year follow-up according to the size of the rotator cuff tear. Methods A retrospective case–control study was undertaken. All patients underwent rotator cuff repairs using the same technique by a single surgeon. Quick Disabilities of the Arm, Shoulder and Hand questionnaire and Oxford Shoulder Score were collected pre-operatively and at final review with a minimum follow-up of one year. Patients with massive rotator cuff repairs were compared to patients who had non-massive rotator cuff repairs. Results Eighty-two patients were included in the study of which 42 (51%) underwent massive rotator cuff repair. The mean follow-up period was 17.5 months. Quick Disabilities of the Arm, Shoulder and Hand questionnaire improved significantly (p < 0.001) from 46.1 pre-operatively to 15.6 at final follow-up for massive rotator cuff repairs. Oxford Shoulder Score improved significantly (p < 0.001) from 26.9 pre-operatively to 41.4 at final follow-up for massive rotator cuff repairs. There was no significant difference in the final Quick Disabilities of the Arm, Shoulder and Hand questionnaire (p = 0.35) or Oxford Shoulder Score (p = 0.45) between the groups. No revision surgery was required within the follow-up period. Conclusion Arthroscopic massive rotator cuff repairs have comparable functional outcome to smaller rotator cuff repair in the short-term and should be considered in a selected group of patients.

Scapular Morphologic Characteristics and Rotator Cuff Tear Pattern Are Independently Associated With Chronic Pseudoparalyis: A Matched-Pair Analysis of Patients With Massive Rotator Cuff Tears

2020 ◽  
Vol 48 (9) ◽  
pp. 2137-2143 ◽  
Author(s):  
Lukas Ernstbrunner ◽  
Rany El Nashar ◽  
Samy Bouaicha ◽  
Karl Wieser ◽  
Christian Gerber
Keyword(s):  
Rotator Cuff ◽  
Case Control Study ◽  
Case Control ◽  
Rotator Cuff Tears ◽  
Matched Pair ◽  
Factors Associated ◽  
Massive Rotator Cuff Tears ◽  
Morphologic Characteristics ◽  
Control Study ◽  
Scapular Plane

Background: It is unclear which structural parameters determine the development or the absence of chronic pseudoparalysis (PP) in patients with massive rotator cuff tears (mRCTs). Purpose: To determine whether scapular morphologic characteristics and extent of rotator cuff tearing are independent factors associated with chronic PP. Study Design: Case-control study; Level of evidence, 3. Methods: In this retrospective case-control study, 50 patients with chronic mRCT (≥2 fully detached tendons) and active scapular plane abduction less than 90° (PP group) were age- and sex-matched with a cohort of 50 patients with chronic mRCT and an active scapular plane abduction greater than 90° (non-PP; NPP group). Analysis of standardized, plain radiographs included measurement of the critical shoulder angle (CSA) and the acromiohumeral distance (ACHD) on anteroposterior views and measurement of posterior acromial tilt, anterior and posterior acromial coverage, and posterior acromial height on standardized outlet views. Measurements on magnetic resonance imaging included fatty muscle infiltration, anterior (subscapularis) and posterior (infraspinatus/teres minor) tear extension, and global tear extension (anterior + posterior tear extension) in the parasagittal plane. Results: Overall, no significant difference was found in patients’ demographic characteristics ( P > .05). Univariate analyses confirmed significant differences between the PP and NPP groups in active scapular plane abduction (51°± 22° vs 135°± 29°; P < .001). Multivariate analyses revealed independent factors associated with PP compared with the NPP group: CSA (38.2°± 4.6° vs 35.2°± 3.7°; P = .001); ACHD (4.7 ± 2.2 vs 7.3 ± 2.6 mm; P < .001); posterior acromial height (22 ± 10 vs 17 ± 7 mm; P = .005); and anterior (–9°± 21° vs 25°± 12°; P < .001) and posterior (–18°± 14° vs 2°± 14°; P < .001) tear extension. The NPP group had significantly less involvement and fatty infiltration of the subscapularis (1.4 ± 0.6) compared with the PP group (2.2 ± 0.9) ( P < .001). Conclusion: This study confirms that global RCT extension and the quality of the inferior half of the subscapularis are significantly associated with chronic pseudoparalysis. The study further shows that acromial morphologic characteristics are relevant in the development of pseudoparalysis. Patients with pseudoparalysis have a larger CSA, less ACHD, and a higher positioned acromion in the sagittal plane.

Risk factors for degenerative, symptomatic rotator cuff tears: a case-control study

2021 ◽  
Author(s):  
Amos Song ◽  
Damien Cannon ◽  
Peter Kim ◽  
Gregory D. Ayers ◽  
Chan Gao ◽  
...  
Keyword(s):  
Risk Factors ◽  
Rotator Cuff ◽  
Case Control Study ◽  
Case Control ◽  
Rotator Cuff Tears ◽  
Control Study
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