Table 2.
Clinical results
| Result | Pre-OA | Early stage | p value (95% CI) |
|---|---|---|---|
| Merle d’Aubigne and Postel score (mean ± SD) | |||
| Before surgery | |||
| Pain | 3.6 ± 0.8 | 3.5 ± 0.6 | 0.52 (0.4–1.7) |
| ROM | 5.9 ± 0.6 | 5.9 ± 0.3 | 0.08 (−0.3–0.02) |
| Walk | 5.5 ± 0.7 | 5.3 ± 0.7 | 0.55 (0.7–2.5) |
| Total | 15 ± 0.8 | 15 ± 1.0 | 12 (0.3–1.2) |
| At followup | |||
| Pain | 5.9 ± 0.4 | 5.1 ± 1.1 | < 0.001 (0.1–0.3) |
| ROM | 6.0 ± 0.2 | 5.8 ± 0.5 | < 0.001 (0.1–0.3) |
| Walk | 5.9 ± 0.4 | 5.5 ± 0.7 | < 0.05 (0.2–0.9) |
| Total | 18 ± 1.1 | 16 ± 2.1 | < 0.001 (0.1–0.3) |
Total score: before surgery versus at followup; p value (95% CI); p < 0.001 (−2.9 to −2.0), p < 0.001 (−2.0 to −1.2); OA = osteoarthritis; CI = confidence interval.