Eric R Wagner1, Michelle J Chang1, Muriel J Solberg1, Kathryn M Welp1, Tyler J Hunt1, Jarret M Woodmass1, Laurence D Higgins2, Jon J P Warner3. 1. Shoulder Service, Massachusetts General Hospital, Department of Orthopedic Surgery, Boston Shoulder Institute, 55 Fruit Street, Suite 3200, Boston, MA, 02114, USA. 2. Shoulder Service, Massachusetts General Hospital, Department of Orthopedic Surgery, Boston Shoulder Institute, 55 Fruit Street, Suite 3200, Boston, MA, 02114, USA. laurencedhiggins@gmail.com. 3. Shoulder Service, Massachusetts General Hospital, Department of Orthopedic Surgery, Boston Shoulder Institute, 55 Fruit Street, Suite 3200, Boston, MA, 02114, USA. jwarner@mgh.harvard.edu.
Abstract
BACKGROUND: The purpose of this study is to analyze the outcomes of open and arthroscopic capsular release following total shoulder arthroplasty. METHODS: Over 15 years, 19 patients experienced persistent shoulder stiffness after anatomic total shoulder arthroplasty refractory to nonoperative treatment, requiring either open (n = 5) or arthroscopic (n = 14) capsular release. There were seven (39%) patients who had a prior diagnosis of stiffness before the primary arthroplasty. RESULTS: At a follow-up of 2.3 years (1-5.5), there were changes in range of motion, including forward flexion (77°-117°), abduction (49°-98°), external rotation (9°-19°), internal rotation at 0° (Sacrum to L1), and pain (4.1-2.3) scores (p < 0.01). There were seven (37%) patients that required a reoperation following the initial capsular release. The survival-free of reoperation at 2 and 5 years was 76% and 53%, respectively, while the survival-free of revision surgery at 2 and 5 years was 83%. Furthermore, three (16%) patients required a repeat capsular release. Overall, there were 11 (58%) complications, including stiffness (n = 9), infection (n = 1), subscapularis rupture (n = 2), glenoid loosening (n = 3), and pain with weakness requiring reoperation (n = 1). CONCLUSIONS: Shoulder stiffness after total shoulder arthroplasty is a very difficult pathology to treat, with high rates of complications and reoperations after capsular release. Overall, in patients that do not develop glenoid loosening, capsular release does improve the patient's pain and shoulder motion. Furthermore, when patients develop stiffness, it is critical to rule out other etiologies, such as glenoid loosening, prior to proceeding with capsular release. LEVEL OF EVIDENCE IV: Retrospective case series.
BACKGROUND: The purpose of this study is to analyze the outcomes of open and arthroscopic capsular release following total shoulder arthroplasty. METHODS: Over 15 years, 19 patients experienced persistent shoulder stiffness after anatomic total shoulder arthroplasty refractory to nonoperative treatment, requiring either open (n = 5) or arthroscopic (n = 14) capsular release. There were seven (39%) patients who had a prior diagnosis of stiffness before the primary arthroplasty. RESULTS: At a follow-up of 2.3 years (1-5.5), there were changes in range of motion, including forward flexion (77°-117°), abduction (49°-98°), external rotation (9°-19°), internal rotation at 0° (Sacrum to L1), and pain (4.1-2.3) scores (p < 0.01). There were seven (37%) patients that required a reoperation following the initial capsular release. The survival-free of reoperation at 2 and 5 years was 76% and 53%, respectively, while the survival-free of revision surgery at 2 and 5 years was 83%. Furthermore, three (16%) patients required a repeat capsular release. Overall, there were 11 (58%) complications, including stiffness (n = 9), infection (n = 1), subscapularis rupture (n = 2), glenoid loosening (n = 3), and pain with weakness requiring reoperation (n = 1). CONCLUSIONS: Shoulder stiffness after total shoulder arthroplasty is a very difficult pathology to treat, with high rates of complications and reoperations after capsular release. Overall, in patients that do not develop glenoid loosening, capsular release does improve the patient's pain and shoulder motion. Furthermore, when patients develop stiffness, it is critical to rule out other etiologies, such as glenoid loosening, prior to proceeding with capsular release. LEVEL OF EVIDENCE IV: Retrospective case series.
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