Figure 2:

Tibiofemoral kinematics exhibited similar relationship with sagittal plane graft angle in ACLR patients (top row) and ACLR simulations (bottom row). Specifically, a more vertical ACL graft was positively correlated with anterior knee laxity (compliance index) and both anterior tibial translation and internal tibial rotation during active knee extension (Table 1). For the ACLR patients, positive values indicate that the ACLR knee value was greater than that of the native knee, and negative values indicate that the ACLR knee value was less than that of the native knee. For the virtual ACLR model, positive values indicate that the model value was greater than that of the nominal model, and negative values indicate that the model value was less than that of the nominal model.