Simulation of Three Dimensional Motion of the Knee Joint in Total Knee Arthroplasty

인공 무릎 관절의 3차원 운동 시뮬레이션

  • 문병영 (부산대학교 항공우주공학과) ;
  • 손권 (부산대학교 기계공학부) ;
  • 김기범 (부산대학교 기계설계공학과) ;
  • 서정탁 (부산대학교 의과대학 정형외과)
  • Published : 2004.09.01


Severe osteoarthrosis of the knee joint often requires total knee arthroplasty(TKA) to yield adequate knee function. The knee joint with TKA is expected ideally to restore the characteristics, however, this is not necessarily 1.ue in the clinical cases. In this study the motion of the intact joint and the joint after. TKA were investigated numerically using computer simulation. For active knee extension from 90 degrees of flexion to full extension, the intact knee joint exhibited anterior tibial translation near the full extension and it showed only rotation at other flexion angles. Physiologic external rotation of the tibia near full extension known as screw home movement was also noted in the analytical model. The analysis of the tibial insert of three different shapes (flat, semicurved, and curved types) demonstrated characteristic rotational and sliding motion as well as different contact forces.


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