组别

下肢长度差(mm)

髋臼外展(˚)

髋臼前倾(˚)

偏心距差(mm)

髋臼外展与术前计划差值(˚)

髋臼前倾与术前计划差值(˚)

髋臼假体在Lewinnek安全区放置率(%)

髋臼假体在Callanan安全区放置率(%)

DDH组

3.95 ± 2.86

43.62 ± 2.57

15.41 ± 4.67

4.82 ± 2.83

3.85 ± 2.18

3.17 ± 3.32

90.9

84.6

AVN组

3.71 ± 2.71

41.62 ± 4.77

12.78 ± 4.75

4.98 ± 3.82

3.67 ± 2.61

3.82 ± 3.54

89.7

65.5

统计值

t = 0.263

t = 1.419

t = 1.671

t = 0.133

t = 0.216

t = 0.559

x² = 0.014

x² = 1.604

P = 0.794

P = 0.164

P = 0.102

P = 0.895

P = 0.830

P = 0.579

P = 0.906

P = 0.205