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Table 2 Data on cup orientation and safe zone in left THA and right THA

From: Is the cup orientation different in bilateral total hip arthroplasty with right-handed surgeons using posterolateral approach?

  Left THA (n = 498) Right THA (n = 498) p value
Mean inclination and anteversion
 Mean inclination (range, SD) 37.50 (15.5–70, 6.76) 38.59 (18–72.5, 6.84) 0.011*
 Mean anteversion (range, SD) 25.28 (6.5–45, 7.16) 22.01 (7.5–41.5, 6.35) < 0.001*
Safe zone placement
 Inclination 433/498 (87%) 436/498 (88%) 0.776
 Anteversion 259/498 (52%) 356/498 (71%) < 0.001*
 Inclination and anteversion 230/498 (46%) 307/498 (62%) < 0.001*
  1. n number, SD standard deviation, THA total hip arthroplasty
  2. *Has statistical significance