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Table 1 Patient characteristics (n = 40, means ± SD)

From: Clinical value of 3D printing guide plate in core decompression plus porous bioceramics rod placement for the treatment of early osteonecrosis of the femoral head

  Experiment group (n = 20) Control group (n = 20) P values
Age, years 42.30 ± 9.20 39.70 ± 8.40 0.357
Sex    0.327
 Male 11 14  
 Female 9 6  
BMI 24.95 ± 2.59 24.47 ± 2.05 0.152
Etiologic factors, number of hips (%)    0.414
 Alcohol 10 7  
 Steroids 7 11  
 Idiopathic 3 2  
ARCO stage    0.803
 I 6 7  
 II 8 6  
 IIIA 6 7  
Preoperative Harris Hip Score 72.70 ± 3.81 70.40 ± 3.36 0.051