Figure 2.

Classification of the dynamic alignment at the time of the injury: We classified the dynamic alignment into six categories: (1) Knee-in & Toe-out: Dynamic alignment with the valgus position of the knee and the abduction position of the foot during the loading phase, (2) Knee-out & Toe-in: Dynamic alignment with the varus position of the knee and the abduction position of the foot during the loading phase, (3) Hyperextension: Dynamic alignment with the hyper-extended position of the knee during the loading phase, (4) Unclear, (5) Unknown, and (6) Other..