Fig. 3From: Femur-tibia angle and patella-tibia angle: new indicators for diagnosing anterior cruciate ligament tears in magnetic resonance imagingThe measurement of FTA and PTA. A, B FTA is the tibial angle minus the femoral angle. C, D PTA is the tibial angle minus the patellar angle. (FTA: femur-tibia angle, PTA: patella-tibia angle)Back to article page