Fig 3.

Measurement according to the intercondylar area method on a left knee. (A) Bony landmarks for grid placement (a, lateral intercondylar ridge; b, intertubercular fossa; c, medial intercondylar ridge. (B) Materializing the boundaries of the rectangular grid, aligned on the medial intercondylar ridge, the posterior border of the intertubercular fossa, the anterior tibial cortex, and the intersection point between the posterior margin of the grid and the lateral intercondylar ridge. (C) Center of the ACL footprint. (D) Center of the tunnel.