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Table 2 Pre-, intra- and postoperative measurements by x-ray and by CAL

From: The intraoperative use of a calliper predicts leg length and offset after total hip arthroplasty. Component subsidence influences the leg length

  Mean (range) (mm) SD r p
Pre-OP LLD −6.00 (−29–25) 8.81   
Post-OP LLD 3.64 (−7–43) 7.29   
Change in LL
 Change as measured by CAL 10.01 (−3–27) 5.87   
 Change as measured on x-ray 10.11 (−3–26) 6.28 0.873 p<0.01
Change in offset     
 Change as measured by CAL −1.86 (−13–20) 5.96   
 Change as measured on x-ray −3.68 (−18–11) 5.98 0.542 p<0.01