Pathology during the diagnostic arthroscopy
| Rotator cuff repair | Placebo surgery | |
| Condition of humerus articular surfaces, n (%) | ||
| Outerbridge grade 0 | ||
| Outerbridge grade 1 | ||
| Outerbridge grade 2 | ||
| Outerbridge grade 3 | ||
| Condition of glenoid articular surfaces | ||
| Outerbridge grade 0 | ||
| Outerbridge grade 1 | ||
| Outerbridge grade 2 | ||
| Outerbridge grade 3 | ||
| Condition of the biceps tendon, n (%) | ||
| Normal | ||
| Tendinosis | ||
| Subluxation |