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. 2021 Sep 10;15(4):041004. doi: 10.1115/1.4051834

Fig. 1.

(Left) CAD geometry rendering of knee laxity apparatus in SolidWorks, (right) knee laxity apparatus testing setup on living subject performing right knee anterior laxity assessment at 30 degrees of knee flexion. Subject thigh rests against the adjustable thigh flexion pad (a), with the ankle of the subject in the orthopedic boot (b). Subject anthropometrics can be accounted for by moving the position of the vertical tower and the boot using thumb screws (c). Anterior laxity loads are applied via the pulleys at the top frame (d), and posterior loads are applied via the pulleys on the bottom frame (e). IE loads are applied via the IE torque wheel attached to the boot (f).

(Left) CAD geometry rendering of knee laxity apparatus in SolidWorks, (right) knee laxity apparatus testing setup on living subject performing right knee anterior laxity assessment at 30 degrees of knee flexion. Subject thigh rests against the adjustable thigh flexion pad (a), with the ankle of the subject in the orthopedic boot (b). Subject anthropometrics can be accounted for by moving the position of the vertical tower and the boot using thumb screws (c). Anterior laxity loads are applied via the pulleys at the top frame (d), and posterior loads are applied via the pulleys on the bottom frame (e). IE loads are applied via the IE torque wheel attached to the boot (f).