Table 1.

Comparison of the operation status and length of postoperative hospital stay between the two groups (mean ± SD)

Group	n	Operation time (min)	Surgical bleeding (mL)	Anterior external incision length (cm)	Intraoperative bone graft (g)	Postoperative drainage (mL)	Hospital stays (d)
Study group	49	118.3 ± 14.0	339.4 ± 38.0	17.5 ± 2.2	7.10 ± 1.87	139.4 ± 34.0	7.4 ± 1.5
Control group	48	130.1 ± 16.3	344.1 ± 42.6	17.8 ± 2.6	9.23 ± 2.04	143.8 ± 39.6	7.8 ± 1.7
t value		-3.827	-0.574	-0.614	-5.362	-0.588	-1.229
P value		0.000	0.568	0.541	0.000	0.558	0.222