Table 1 Demographics

Number of patients (n)

32

Number of females (n)

20 (62.5%)

Number of males (n)

12 (32.5%)

Mean operation age (y)

54.7 (Range:37–70)

Mean follow-up time(y)

7.9 (Range:4.4–13.1)

Mean operation time(min)

59.8 (Range:40–115)

The mean intraoperative blood loss(ml)

325.3 (Range:260–450 mL)

Mean hospital stay(d)

11.1 (Range:9–21)

Hip muscle strength

 Abductor

III (27);IV (5);V (0)

 Extensor

III (17); IV (15);V (0)

 Adductor

III (0);IV (11);V (21)

 Flexor

III (0);IV (7);V (25)