Time | Distance(mm) | P |
---|
Postoperative day 1 | 4.48 ± 0.67 |
–
|
Postoperative 6 months | 2.59 ± 0.34 | Pa<0.021 |
Postoperative 1 year | 1.49 ± 0.32 | Pb<0.001 |
Postoperative 2 years | 0.74 ± 0.25 | Pc<0.001 |
- a, b, and c mean the distance between the postoperative day 1 and Postoperative 6 months, the distance between the postoperative 6months and Postoperative 1 year and the distance between the postoperative 1 year and Postoperative 2 years are significantly different (P < 0.05)