Table 3.
Outerbridge grade at surgery | Average ± SD | Median | Range |
---|---|---|---|
Acetabular grade | |||
Normal (n = 43) | 90.2 ± 9.8 | 94 | 60–100 |
I (n = 8) | 87.3 ± 12.2 | 81 | 56–100 |
II (n = 8) | 73.1 ± 14.5 | 73 | 56–95 |
III (n = 0) | — | — | — |
IV (n = 3) | 83.8 ± 14.7 | 80 | 71–100 |
Femoral grade | |||
Normal (n = 44) | 88.2 ± 11.8 | 94 | 56–100 |
I (n = 12) | 85.1 ± 14.5 | 81 | 59–100 |
II (n = 5) | 85.5 ± 11.5 | 73 | 69–95 |
III (n = 1) | — | 84 | — |
IV (n = 0) | — | — | — |
Total (n = 62) | 87.3 ± 12.1 | 91 | 56–100 |