Table 1: Comparison of Harris hip scores between the two groups ( x ¯ ±s ).

Group

Number of cases

Preoperative

One month after surgery

Two months after surgery

Three months after surgery

Control group

110

24.6 ± 10.7

71.1 ± 6.5

82.6 ± 6.6

88.9 ± 10.5

research group

110

23.2 ± 10.3

69.7 ± 6.2

80.2 ± 6.2

83.2 ± 10.2

T

/

4.458

4.985

5.143

6.859

P

/

< 0.05

< 0.05

< 0.05

< 0.05