Clinical Analysis of Single and Double Sacroiliac Screws in the Treatment of Tile C1 Pelvic Fracture

Table 3

Comparison of Matta scores at the last follow-up.

Group	Number of cases	Matta score
		Optimal	Good	Middle	Poor
Single screw	20	7	7	4	2
Double screws	29	25	2	1	1
value	—	9.67
values	—	0.012