535 PS型人工膝関節における回旋時のポスト/カム間の接触圧力評価(S09-1 関節のバイオメカニズム(1),S09 関節のバイオメカニズム)

概要

論文の詳細を見る
The purpose of this study was to measure the contact area and the contact stress at the post-cam mechanism of posterior-stabilized (PS) total knee arthroplasties (TKAs) when a posterior force of 500N was applied to some PS TKAs. Measurements was made at 90 degrees, 120 degrees and 150 degrees of flexion both in neutral rotation and 10 degrees of internal rotation of the tibial component. With an internally rotated tibia, the contact stress increased significantly and the contact area decreased significantly with all arthroplasties. It is likely that the contact position influenced the contact pressure. The post-cam design should be modified in order to provide a larger contact area whilst avoiding any impingement.
社団法人日本機械学会の論文
2006-09-15