3. Deviations from protocol and side interventions.
| Study | Group (N) | Did not receive allocated treatment | Crossed over | Re‐operated | Additional interventions |
| 1. Surgery (repair with or without subacromial decompression) versus non‐operative treatment | |||||
| Kukkonen 2014 | Exercise therapy (60) | 0 | 4 (7%) by one year 7 (12%) by 2 years | 0 | Not described if any were allowed |
| Subacromial decompression (60) | 0 | 1 (2%; to repair of cuff) | 1 (2%) | 7 (12%) distal clavicle resection 29 (51%) biceps tenotomy |
|
| Subacromial decompression and rotator cuff repair (60) | 5 (8%) | N/A | 0 | 8 (15%) distal clavicle resection 23 (42%) biceps tenotomy |
|
| Lambers Heerspink 2015 | Subacromial decompression and rotator cuff repair (25) | 0 | N/A | 0 | Biceps procedure was planned for participants with irreparable tear, not clearly reported if any were performed (two participants) |
| Exercise therapy (31) | 0 | 3 (10%) | 0 | 1 to 3 glucocorticoid injections | |
| Moosmayer 2010 | Subacromial decompression and rotator cuff repair (52) | 1 (2%) | N/A | 0 | 18 (35%) biceps tenodesis |
| Exercise therapy (51) | 0 | 9 (18%) by 1 year 12 (24%) by 5 years | 0 | No supplementary treatments | |
| 2. Repair with acromioplasty versus repair only | |||||
| Abrams 2014 | Repair with acromioplasty (65) | 0 | 0 | 1 re‐repair | 23 (43%) biceps tenotomy 3 (6%) distal clavicle resection |
| Repair (49) | 0 | 0 | 3 re‐repairs 1 capsular release and biceps tenotomy |
17 (40%) biceps tenotomy 2 (5%) distal clavicle resection |
|
| Gartsman 2004 | Repair with acromioplasty (47) | 0 | 0 | 0 | 0 (excluded) |
| Repair (46) | 0 | 0 | 0 | ||
| MacDonald 2011 | Repair with acromioplasty (41) | 2 (5%) | 0 | 0 (0%) 0 | 0 |
| Repair (45) | 1 (2%) | 3 (7%) | 1 re‐repair + acromioplasty 2 acromioplasty |
0 | |
| Milano 2007 | Repair with acromioplasty (40) | 0 | 0 | 0 | 13 (33%) biceps tendon procedure |
| Repair (40) | 0 | 0 | 0 | 20 (50%) biceps tendon procedures | |
| Shin 2012 | Repair with acromioplasty (75) | 0 | 0 | 2 capsular release 1 bursectomy |
12 (20%) biceps tendon procedures a |
| Repair (75) | 0 | 0 | 0 | 17 (28%) biceps tendon procedures a | |
| 3. Repair with subacromial decompression versus subacromial decompression only | |||||
| Dezaly 2011 | Repair with subacromial decompression (70) | 0 | 0 | 0 | 70 (100%) biceps tenotomy |
| Subacromial decompression (60) | 0 | 0 | 0 | 60 (100%) biceps tenotomy | |
| Kukkonen 2014 | Subacromial decompression and rotator cuff repair (60) | 5 (8%) | 0 | 0 | 8 (15%) distal clavicle resection 23 (42%) biceps tenotomy |
| Subacromial decompression (60) | 1 (2%) | 1 (2%) | 1 repair | 7 (12%)distal clavicle resection 29 (51%) biceps tenotomy |
|
a Authors report additional procedures for 60 participants who were not lost to follow‐up.