| Pain group | Improvement group | ||
---|---|---|---|---|
 | Initial MRI | Repeat MRI | Initial MRI | Repeat MRI |
Bursal fluid accumulation | ||||
 Grade 0 | 4 | 7 | 6 | 13 |
 Grade 1 | 34 | 29 | 20 | 21 |
 Grade 2 | 29 | 31 | 15 | 7 |
SSP retraction | ||||
 (mm) | 24.4 ± 13.5 | 28.5 ± 14.1 | 17.1 ± 13.8 | 21.2 ± 14.4 |
SSC tendon tears | ||||
 No tears | 26 | 20 | 29 | 28 |
 Partial tears | 19 | 23 | 7 | 8 |
 Complete tears | 22 | 29 | 5 | 5 |
ISP tendon tears | ||||
 No tears | 41 | 33 | 33 | 30 |
 Tears | 26 | 34 | 8 | 11 |
Goutallier classification in SSC | ||||
 Grade 0 | 24 | 22 | 26 | 26 |
 Grade 1 | 21 | 23 | 8 | 7 |
 Grade 2 | 10 | 10 | 3 | 3 |
 Grade 3 | 4 | 4 | 2 | 1 |
 Grade 4 | 8 | 8 | 2 | 4 |
Goutallier classification in SSP | ||||
 Grade 0 | 0 | 0 | 1 | 0 |
 Grade 1 | 15 | 14 | 15 | 14 |
 Grade 2 | 31 | 28 | 21 | 20 |
 Grade 3 | 9 | 12 | 1 | 3 |
 Grade 4 | 12 | 13 | 3 | 4 |
Goutallier classification in ISP | ||||
 Grade 0 | 7 | 5 | 10 | 10 |
 Grade 1 | 33 | 30 | 24 | 20 |
 Grade 2 | 9 | 9 | 3 | 6 |
 Grade 3 | 4 | 6 | 0 | 0 |
 Grade 4 | 14 | 17 | 4 | 5 |