From: Accuracy of image-free navigation in intraoperative leg length change from total hip arthroplasty using evaluations from 2D and 3D measurements
Image-free navigation
2D measurement
3D measurement
LLC (mm)
12.0 ± 7.2
13.2 ± 7.0
12.9 ± 6.5
(−7 to 32)
(−3 to 35)
(−1 to 34)