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Table 3 Accuracy of implant placement

From: Preoperative planning for implant placement with consideration of pelvic tilt in total hip arthroplasty: postoperative efficacy evaluation

  Cup inclination Cup anteversion Stem antetorsion CA
Intraoperative navigation measurement (°) 39.7 (3.7) 17.3 (6.7) 25.2 (8.5) 34.9 (6.5)
Postoperative CT measurement (°) 39.2 (4.2) 16.9 (6.3) 25.8 (8.7) 34.6 (7.7)
P value 0.36 0.58 0.67 0.80
Absolute error (°) 2.3 (2.1) 2.1 (2.0) 3.0 (2.4) 3.5 (3.2)
  1. CA combined anteversion. The figures in parentheses are standard deviations. The intraoperative navigation measurements and postoperative CT measurements are expressed as radiographic angles relative to an anterior pelvic plane value of 0°