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Fig. 2 | Knee Surgery & Related Research

Fig. 2

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

Fig. 2

A Parallel cutting. Point M: the most medial Point M line; a line that was perpendicular to the ground and passed Point M. L line: a line that was perpendicular to the ground and most lateral edge of the tibia. Line ML: a line drawn from Point M in parallel to the ground until reaching L line. AP line: drawn from the most anterior part of PA until reaching the point on ML line. Point A: the crossing point of AP line and ML line. Point D1: the point located 17.5 mm away from the most anterior part of popliteal artery on AP line. dM-D1: the distance between Point M and Point D1. dD1-A: the distance between Point D1 and Point A. dL-D1: the distance between Point L and Point D1. dL-D2: the distance between Point L and Point D2. B Relative location of D1 in the osteotomy line. %D1: the ratio of dM-D1 (green line) or dL-D1 to the length of ML line (yellow line). The starting point of the osteotomy was defined as 0%, and the end of the osteotomy line was defined as 100%. The lower illustration shows the distribution of location of popliteal artery based on %D1 in OWHTO and hybrid CWHTO. C Oblique cutting. A circle centering the most anterior point of popliteal artery with a radius of 17.5 mm was drawn, and a tangential line to the circle was drawn from Point M. The contact point was defined as Point D2. Cutting angle: the angle between ML line and the tangential line. dM-D2: the distance between Point M and Point D2

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