Table 2.
Comparison of arthroscopic findings and procedures between the two groups*
| Revision, N = 12 | Primary, N = 48 | P Value | |
|---|---|---|---|
| Location of loose bodies | |||
| Peripheral compartment | 12 (100) | 44 (91.7) | .301 |
| Central compartment | 9 (75.0) | 44 (91.7) | .108 |
| Milgram stage | .513 | ||
| Stage 2 | 6 (50.0) | 29 (39.6) | |
| Stage 3 | 6 (50.0) | 19 (60.4) | |
| Synovial hypertrophy | 12 (100) | 44 (100) | 1 |
| Labral repair | 9 (75.0) | 23 (47.9) | .093 |
| Femoroplasty | 8 (66.7) | 28 (58.3) | .598 |
| Acetabuloplasty | 3 (25.0) | 12 (25.0) | 1 |
| Acetabular cartilage | .162 | ||
| Outerbridge grade 0 | 2 (16.7) | 25 (52.1) | |
| Outerbridge grade 1 | 3 (25.0) | 7 (14.6) | |
| Outerbridge grade 2 | 2 (16.7) | 8 (16.7) | |
| Outerbridge grade 3 | 3 (25.0) | 6 (12.5) | |
| Outerbridge grade 4 | 2 (16.7) | 2 (4.2) | |
| Femoral head cartilage | .735 | ||
| Outerbridge grade 0 | 9 (75.0) | 39 (81.3) | |
| Outerbridge grade 1 | 2 (16.7) | 4 (8.3) | |
| Outerbridge grade 2 | 1 (8.3) | 3 (6.3) | |
| Outerbridge grade 3 | 0 | 2 (4.2) | |
| Outerbridge grade 4 | 0 | 0 | |
| Capsular repair | 12 (100) | 48 (100) | 1 |
*Values are presented as No. of hips (%)