Evaluation of Structural and Functional Integrity of the Rotator Cuff After Total Shoulder Arthroplasty

2019 ◽  
Author(s):  
Keyword(s):  
Rotator Cuff ◽  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Functional Integrity

Effect of deltoid volume on range of motion and patient-reported outcomes following reverse total shoulder arthroplasty in rotator cuff-intact and rotator cuff-deficient conditions

2020 ◽  
pp. 175857322092504
Author(s):  
Samuel G McClatchy ◽  
Griffin M Heise ◽  
William M Mihalko ◽  
Frederick M Azar ◽  
Richard A Smith ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Range Of Motion ◽  
Shoulder Arthroplasty ◽  
Patient Reported Outcomes ◽  
Total Shoulder Arthroplasty ◽  
Deltoid Muscle ◽  
Reverse Total Shoulder Arthroplasty ◽  
Shoulder Range Of Motion ◽  
Patient Reported ◽  
Reverse Total Shoulder

Background Deltoid muscle function is paramount to the success of reverse total shoulder arthroplasty. The purpose of this study was to investigate the role of deltoid volume on shoulder range of motion and patient-reported outcomes following reverse total shoulder arthroplasty in rotator cuff-intact and rotator cuff-deficient conditions. Methods Retrospective review of records identified 107 patients who met inclusion criteria. The rotator cuff integrity was evaluated by two musculoskeletal-trained radiologists. Volumetric deltoid measurements were calculated from preoperative computed tomography or magnetic resonance imaging scans. Satisfactory outcomes were defined as forward elevation of at least 135°, external rotation of at least 35°, and American Shoulder and Elbow Surgeons and Single Assessment Numerical Evaluation scores of at least 70. Results Mean total deltoid muscle volume was significantly higher in patients with satisfactory forward elevation (57.8 ± 18.1 cm³) versus unsatisfactory forward elevation (48.6 ± 19.5 cm³) (p = 0.013). When separated by rotator cuff integrity, total deltoid volume was significantly higher (p = 0.030) in patients who achieved satisfactory forward elevation in the rotator cuff-deficient group but not the rotator cuff-intact group (p = 0.533). Discussion Preoperative deltoid volume directly correlated with achieving satisfactory forward elevation after reverse total shoulder arthroplasty in rotator cuff-deficient conditions and may be one factor in determining the ability to achieve satisfactory outcomes in the rotator cuff-deficient patient.

Strain Analysis in the Scapula After a Reverse Total Shoulder Arthroplasty

2012 ◽  
Author(s):  
Radhika J. Patel ◽  
Chi Zhang ◽  
Yingxin Gao
Keyword(s):  
Articular Cartilage ◽  
Rotator Cuff ◽  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Cartilage Damage ◽  
Strain Analysis ◽  
Reverse Total Shoulder Arthroplasty ◽  
Articular Cartilage Damage ◽  
Reverse Total Shoulder ◽  
Rotator Cuff Arthropathy

A reverse total shoulder arthroplasty (RTSA) is strongly suggested for patients who suffer from rotator cuff (RTC) arthropathy, where RTC deficiency causes abnormal loading leading to articular cartilage damage. Studies show that 47% of RTSA patients have rotator cuff arthropathy and 27% have some form of osteoarthritis (OA) [1].

The incidence and effect of fatty atrophy, positive tangent sign, and rotator cuff tears on outcomes after total shoulder arthroplasty

2017 ◽  
Vol 26 (12) ◽  
pp. 2110-2116 ◽  
Author(s):  
W. Stephen Choate ◽  
Ellen Shanley ◽  
Richard Washburn ◽  
Stefan J. Tolan ◽  
Tariq I. Salim ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Shoulder Arthroplasty ◽  
Total Shoulder Arthroplasty ◽  
Rotator Cuff Tears ◽  
Fatty Atrophy
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