with 25 n weight and the vastus lateralis will be loaded with 20 n finally a high precision potentiometer shape sensor will be used to measure the joint angle the knee will then be flexed and extended from 0 to 9 u00b0 degrees a distribution of contact pressure will be recorded as a function of angle the leg will also be outfitted with an angle sensor on the side of the knee in order to measure joint angle the sensors will allow readings of stress and tension in real time as the knee is brought through the complete flexion cycle the effect of each particular reefing on peak joint stresses will be measured and abnormal tension in the shortened ligament will be correlated with peak joint stresses through the flexion cycle finally the components will be placed in abnormal positions of valgus varus flexion and extension and the pressures again measured through the flexion cycle an experimental knee replacement procedure was performed on a mock human knee 50 once the experimental knee replacement surgery was performed a traditional spacer was removed and replaced with one that had six pressure sensors 35 the sensors 35 and the main unit 12 were coupled through the use of wires the knee 50 was.