Journal of Computer Science & Systems Biology

Cheah K

Publications

• Research Article
  Stress in the Patella Following Autologous Chondrocyte Implantation - A Finite Element Study
  Author(s): Walker RW, Cheah K, Ingle P and Mootanah RWalker RW, Cheah K, Ingle P and Mootanah R
  
  Bovine patella cartilage shows signs of damage and cell death when subjected to a compressive cyclic load of 6 MPa, which results in a shear stress of 5.6 MPa. The aim of this research was to investigate the effect of activities of daily living (descending stairs, bicycling and deep flexion) on the contact stresses in the patellofemoral compartment following an articular chondrocyte implantation (ACI). A finite element (FE) model of the patellar femoral joint was created and dynamic non-linear analyses were carried out for this purpose. A shear stress of 5.6 MPa was used as the threshold that cartilage can tolerate without resulting in damage. The FE model was verified numerically. Our results show that, for a 70 kg individual at 50% recovery, (i) contact stress in the patella is 11% higher than that in the femur; (ii) shear stress in the host cartilage re.. Read More»
  DOI: 10.4172/0974-7230.1000126

  Abstract PDF