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Table 3 Harris hip function scale was compared between the two groups at preoperative and postoperative time points

From: Comparison of retrograde anatomy iliac bone flap grafting versus anterograde anatomy iliac bone flap grafting for treatment of osteonecrosis of the femoral head

Variable

Retrograde group

Antegrade group

P value

(N = 49)

(N = 52)

Preoperative surgery

65.9 ± 4.7

65.8 ± 5.0

0.888

Postoperative surgery

   

 9 months

73.4 ± 5.2

73.0 ± 5.2

0.562

 12 months

78.0 ± 4.1

77.9 ± 4.6

0.928

 18 months

81.3 ± 3.9

81.3 ± 4.0

0.986

 24 months

83.0 ± 4.2

83.2 ± 4.0

0.77

 36 months

84.6 ± 4.7

84.4 ± 4.3

0.855

 RP

2 (4.1%)

3 (5.8%)

1

 EGR

42/7 (85.7%)

43/9 (82.6%)

0.788

  1. RP radiographic progression, EGR means excellent and good rate