Effect of Partial Lateral Meniscectomy on the Fluid Pressurization of Articular Cartilage - a 3d Finite Element Study of the Knee Joint
نویسنده
چکیده
The objective of this study was to investigate the effect of partial longitudinal lateral meniscectomy on the mechanics of the knee joint. A 3D fibril-reinforced finite element (FE) model of the knee joint was used for this purpose. The model includes bones, cartilages, menisci as well as four major ligaments. The cartilages and menisci were modeled as fully saturated porous media reinforced by collagen fibres. Three different cases of partial removal of the lateral meniscus were considered. In each case, the changes in fluid pressurization of articular cartilage were compared with the results from the intact joint. It was found that fluid pressure increases significantly after partial lateral meniscectomy. Moreover, the rate of decay in fluid pressure was remarkably lower than the intact joint. Furthermore, the fluid pressure level of the femoral cartilage was proportional to the amount of meniscus that was removed.
منابع مشابه
Partial meniscectomy changes fluid pressurization in articular cartilage in human knees.
Partial meniscectomy is believed to change the biomechanics of the knee joint through alterations in the contact of articular cartilages and menisci. Although fluid pressure plays an important role in the load support mechanism of the knee, the fluid pressurization in the cartilages and menisci has been ignored in the finite element studies of the mechanics of meniscectomy. In the present study...
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