表 3.

两组患者术前、术后第一跖骨头前后径及变化量的比较

Comparison of preoperative, postoperative anteroposterior diameter of the first metatarsal head and the amount of change between the two groups

Group	Preoperative/cm, x±s	Postoperative/cm, x±s	Amount of change/cm, x±s
Observation group	30.93±2.97	39.96±4.43	9.04±3.76
Control group	31.38±3.38	41.68±2.44	10.30±4.12
t	0.443	1.570	0.795
P	0.664	0.137	0.439