Biomechanical Study of Artificial Knee Joint.

Abstract

To study the mechanical properties of the human knee joint and its removal, artificial tibial components have been investigated by a visco-elastic spectrometer and a testing machine of the Instron type. Damage of artificial tibial components was measured by stereological pattern analysis and a roughness meter. At the upper tibia in cancellous bone, the average compressive strength of the medial part was 7.6 MPa and that of the lateral part was 5.1 MPa. At the damaged artificial tibial components, comparing lateral and medial sides, we find that the lateral side is damaged more than the medial side.