Table 2.
Comparison of functional Pre and post-operative scores between the groups.
| Pre-operative Scores (mean ± SD) | |||
|---|---|---|---|
| AVN group | OA group | P-value | |
| HHS | 27.5 ± 13.7 | 24.5 ± 10.3 | 0.08 |
| SF-36 (PCS) | 22.0 ± 4.6 | 22.1 ± 4.6 | 0.8 |
| SF-36 (MCS) | 29.2 ± 6.3 | 28.7 ± 5.4 | 0.5 |
| WOMAC |
10.8 ± 8.0 |
11.1 ± 8.4 |
0.7 |
|
Post-operative Scores (Difference from the baseline, mean ± SD) | |||
| HHS | 94.7 ± 7.1 | 92.2 ± 9.3 | 0.04 |
| (67.2 ± 10.1) | (67.7 ± 10.2) | ||
| SF-36 (PCS) | 54.7 ± 3.8 | 49.4 ± 3.6 | 0.001 |
| (32.7 ± 4.3) | (27.2 ± 4.2) | ||
| SF-36 (MCS) | 53.1 ± 4.1 | 50.6 ± 5.0 | 0.001 |
| (23.9 ± 5.7) | (21.9 ± 5.4) | ||
| WOMAC | 93.4 ± 13.7 | 91.0 ± 10.3 | 0.01 |
| (82.6 ± 9.1) | (79.9 ± 8.9) | ||
Abbreviations: AVN; avascular necrosis, OA; osteoarthritis, HHS; Harris Hip Scores, PCS; physical component summary, MCA; mental component summary, WOMAC; Western Ontario and McMaster Universities Osteoarthritis Index.