Fig. 3

a Measurement of the center location of the tibial tunnel footprint. The locations of the centers of the anterior and the posterior tunnels footprints were measured as percentages of the anterior–posterior and the medial–lateral distances on the tibial plateau from the anterior and the medial borders, respectively. b Measurement of the location of the anterior, posterior, medial, and lateral edges of the anterior tunnels footprints. The locations of the anterior and posterior edges of the footprint were measured as percentages of the anterior–posterior distance on the tibial plateau, while those of the medial and lateral edges were measured as percentages of the medial–lateral distance on the plateau, respectively. M: medial, L: lateral, A: anterior, P: posterior