| 一期术前(A) | 一期术后1 w (B) | 一期术后1 m (C) | 一期术后2 m (D) |
| 3.12 ± 0.53 | 3.37 ± 0.63 | 3.56 ± 0.48 | 3.53 ± 0.77 |
| F = 5.28P = 0.021 | |||
| — | — | — | — |
| — | — | P(BC) = 0.018 | P(BD) = 0.019 |
| — | — | — | P(CD) = 2.092 |