表 2.

Comparison of VAS scores and JOA scores between the two groups before and after operation ( )

两组患者手术前后VAS评分及JOA评分比较（ ）

组别 Group	例数 n	VAS				JOA
		术前 Preoperative	术后2周 Two weeks after operation	末次随访 Last follow-up		术前 Preoperative	术后2周 Two weeks after operation	末次随访 Last follow-up
n-HA/PA66组 n-HA/PA66 group	23	6.9±1.3	1.9±0.9	0.9±0.9		7.6±3.1	18.4±4.6	24.9±4.4
自体髂骨组 Autologous iliac bone group	25	6.8±1.5	2.9±1.4	1.0±1.1		7.3±3.9	17.3±4.7	23.5±5.2
统计值 Statistic		时间效应F=329.008，P=0.000 交互效应F=3.145，P=0.048 组别效应F=3.169，P=0.082				时间效应F=196.363，P=0.000 交互效应F=0.200，P=0.815 组别效应F=1.337，P=0.254