Table 3.
Spearman’s rank correlations and 95% confidence intervals for the modified Outerbridge grade versus Beck’s intraoperative grade
| Acetabular cartilage subregion | No map | With map | No map versus with map difference |
|---|---|---|---|
| AP | 0.40 (0.12–0.62) p = 0.008 |
0.39 (0.10–0.61) p = 0.009 |
pdiff = 0.94 |
| AC | 0.14 (−0.17 to 0.42) p = 0.38 |
0.34 (0.05–0.58) P = 0.02 |
pdiff = 0.15 |
| SP | 0.53 (0.28–0.71) p < 0.001 |
0.52 (0.27–0.71) p < 0.001 |
pdiff = 0.96 |
| SC | 0.41 (0.13–0.63) p = 0.006 |
0.42 (0.14–0.64) p = 0.005 |
pdiff = 0.93 |
| PP | 0.12 (−0.19 to 0.40) p = 0.46 |
0.16 (−0.15 to 0.44) P = 0.30 |
pdiff = 0.75 |
| PC | 0.37 (0.08–0.061) p = 0.01 |
0.28 (−0.03 to 0.53) p = 0.07 |
pdiff = 0.49 |
AP = anterior-peripheral; AC = anterior-central; SP = superior-peripheral; SC = superior-central; PP = posterior-peripheral; PC = posterior-central.