Marking points of medial collateral ligament–posterior oblique ligament attachments in left knee (with patient supine and knee flexed 30°). (A) Point A (white solid circle and red arrow), 3.2 mm proximal and 4.8 mm posterior to medial femoral epicondyle. (B) Point B (white empty circle and orange arrow), 1.2 cm distal to joint line (white dashed line) just anterior to semimembranosus tendon. (C) Point C (white dotted empty circle and yellow arrow), 6.1 cm distal to joint line (white dashed line) just posterior to semitendinosus insertion. (D) Point D (yellow solid circle and green arrow), 2 mm lateral to medial tibia and 2 cm distal to tibial plateau. (E) Point E (yellow empty circle and blue arrow), 8 mm distal and 6 mm anterior to posterior edge of medial femoral epicondyle. (F) Point F (green solid circle and black arrow), point of intersection of axes of medial collateral ligament and posterior oblique ligament at femur (isometric point).