Fig. 1

Cadaveric knee mounted in the knee-joint simulator. Simulation of the three main muscle groups according to Farahmand et al. (Farahmand et al. 1998) of the M. quadriceps: m. vastus lateralis [A: 75 N ≅ 42%], mm. rectus femoris and vastus intermedius [B: 60 N ≅ 35%] and m. vastus medialis [C: 40 N ≅ 23%], proportional to the physiological loading situation