|
Group
|
Preoperative
|
Postoperative
|
1 month
|
2 months
|
3 months
|
6 months
|
1 year
|
2 years
|
|---|
|
1
|
43.5 ± 7.6
|
66.1 ± 7.1
|
56.4 ± 6.8
|
56.1 ± 6.9
|
56.1 ± 6.9
|
56.1 ± 6.9
|
56.1 ± 6.9
|
56.1 ± 6.9
|
|
2
|
43.4 ± 7.4
|
72.8 ± 6.5
|
70.6 ± 6.3
|
69.5 ± 6.7
|
69.3 ± 6.7
|
69.3 ± 6.7
|
69.3 ± 6.7
|
69.3 ± 6.7
|
- Values are expressed as the mean ± SD. There was significant difference (P < 0.005) after surgery between the two groups. The central height after surgery was significantly higher (P < 0.005) than that of before surgery in two groups. The central height immediately after surgery was significantly higher (P < 0.005) than that of 1 month, 2 months, 3 months, 6 months, 1 year, and 2 years in group 1.
