Fig. 5

Antero-posterior translation of medial and lateral contact points. a Shows anterior–posterior (AP) translation (mm) of the medial contact point (CP). b Shows AP translation (mm) of the lateral CP. Plus indicates anterior translation of the CP, and minus indicates posterior translation of the CP. The horizontal axis shows the knee flexion angle. The solid line represents the flexion phase, and the dashed line represents the extension phase. Paired t-test; *P < 0.05, **P < 0.01