Fig. 2From: Clinical evaluation of a biomechanical guidance system for periacetabular osteotomyExample of the BGS intraoperative data collection during PAO. CT landmarks (red 1, 2, 3) and the associated digitized patient landmarks (blue 1, 2, 3) provide a gross registration. Surface points (black dots) refine the registration while confidence points (blue ‘+’ symbol) provide a virtual reference. The fragment points digitized prior to (red 1, 2, 3) and after mobilization (teal 1, 2, 3) track the realigned acetabulum (green) compared to the initial position (blue/red fragment)Back to article page