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Fig. 2 | Journal of Orthopaedic Surgery and Research

Fig. 2

From: Clinical evaluation of a biomechanical guidance system for periacetabular osteotomy

Fig. 2

Example 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)

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