Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (39): 7259-7262.

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Finite element analysis of biomechanics of knee joint including posterolateral structures

Liu Xiao-min1, Liu Jie1, Lü Jin1, Yuan Jin-bo1, Pu Yong-hua1, Wu Song2   

  1. 1HuNan Traditional Chinese Medical College, Zhuzhou 412012, Hunan Province, China
    2Department of Orthopedics, the Third Xiangya Hospital of Central South University, Changsha 410013, Hunan Province, China
  • Received:2012-01-29 Revised:2012-02-28 Online:2012-09-23 Published:2012-09-23
  • Contact: Wu Song, Doctor, Professor, Department of Orthopedics, the Third Xiangya Hospital of Central South University, Changsha 410013, Hunan Province, China S703@sina.com
  • About author:Liu Xiao-min★, Master, Attending physician, HuNan Traditional Chinese Medical College, Zhuzhou 412012, Hunan Province, China Lxm108ban@sina.com

Abstract:

BACKGROUND: Finite element analysis is a numerical analysis method and suitable for analyzing the biomechanics of the human body through three-dimensional finite element.
OBJECTIVE: To analysis the biomechanics of the main posterolateral knee ligament (lateral collateral ligament, popliteus tendon and popliteofibular ligament).
METHODS: Firstly, the three-dimensional finite element model of the knee including posterolateral structures was established. Secondly, the stress response of posterolateral structures was analyzed by applying the power of forward and backward, the torque of turning inward and outward and the torque of internal and external rotation to the tibia.
RESULTS AND CONCLUSION: Posterolateral structures had an important role in limiting the knee to turning inward, internal rotation and moving backward of the tibia, but the limitation on the knee to turning outward, external rotation and moving forward of the tibia was not obvious. The results showed that the posterolateral structures have an obvious influence on the stability of the knee. The lateral collateral ligament plays a major role in the knee posterolateral structures and followed by the popliteal tendon, and popliteofibular ligament plays a supporting role in the posterolateral structures.

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