Fig. 1From: Knee joint kinematics with dynamic augmentation of primary anterior cruciate ligament repair - a biomechanical studyTest setup with a specimen mounted for biomechanical testing. The proximal femur is rigidly fixated to the machine base whereas the distal tibia is attached to a ball-and-socket joint that can slide freely with a linear track along the aluminum profile allowing physiological rolling and gliding of the knee. Blue arrows indicate the degrees of freedom. DOF = degrees of freedomBack to article page