Intracortical screw insertion plus limited open reduction in treating type 31A3 irreducible intertrochanteric fractures in the elderly

Table 1 Comparison of functional recovery scores before and after surgery in the elderly cases

	Before injury	At 1 mo after surgery	At 2 mo after surgery	At 3 mo after surgery	At 6 mo after surgery	At 12 mo after surgery
FRS scores	84.8 ± 10.7	51.9 ± 6.2	57.1 ± 6.4	66.3 ± 7.5	81.9 ± 8.1	83.6 ± 9.8
t value		12.759	10.655	6.790	1.036	0.397
P value		< 0.001	< 0.001	< 0.001	0.306	0.694

FRS: Functional recovery scores.