🔍 Key Findings
- All surgically treated shoulders developed osteoarthritis, confirmed on radiographs and CT (P = .0001, P = .005).
- Ipsilateral muscle atrophy (↓ brachial circumference, P = .003) and decreased shoulder ROM were common long-term findings.
- Cartilage infilling remained incomplete in all joints on arthroscopy, with median infilling of 37.4% up to 8.9 years post-op.
- Moderate-to-severe synovitis was noted in all OC-affected joints via arthroscopy.
- Despite clinical abnormalities, no significant difference in peak vertical force or impulse was found between affected and unaffected limbs.
- Radiographs underestimated lesion size compared to CT (P = .001 for width, P = .038 for depth).
- Owner-assessed mobility remained satisfactory, with median LOAD score = 6 (“mild” disability).
- Study underscores progression of OA is likely, but clinical relevance may be low in many cases.
