Analysis of popliteal artery location for high tibial and distal tuberosity osteotomy using contrast-enhanced computed tomography.

PAs could run within 10 mm from the posterior cortex in the osteotomy planes of HTO. Therefore, proper posterior protection is necessary when cutting posterior cortex. An angle of less than 35° against the medial cortex line would be safe for screw fixation to avoid vascular injury in DTO.