Fig. 4

Anteroposterior translation of the tibia analyzed by 2D/3D registration technique. Y-axis: tibial anterior translation (mm). X-axis: knee flexion angle (°). Dotted line: ACLD knees. Dashed line: DB-ACLR knees. Solid line: contralateral knees. The anteroposterior position of the tibia of the ACLD knees is significantly different from the contralateral knees and the DB-ACLR knees (post hoc pairwise comparisons with a mixed linear model with repeated measures on SPSS, p = 0.015)