Fig 1.
a) Segmentation process of DICOM file b) Volume rendered 3D model.
Fig 2.
Final 3D solid knee model with nomenclature.
Table 1.
Material properties of the knee joint bones and ligaments [14, 31–35, 43, 44].
Fig 3.
Components of knee joint (a) Femoral component; (b) Tibia component; (c) Polyethylene spacer.
Fig 4.
Solid Model (a) Tetrahedron mesh model; (b) Constraints incorporated mesh model.
Table 2.
Comparison of results with and without implant.
Fig 5.
Results of the structural analysis: (a) Total deformation of knee joint; (b) Total stress of knee joint.
Fig 6.
Structural analysis: (a) Deformation in femur bone; (b) Stress distribution in femur bone.
Fig 7.
Structural analysis: (a) Stress in articular cartilage attached to the femur; (b) Deformation in articular cartilage attached to Tibia.
Fig 8.
Structural analysis: Deformation in Tibia.
Fig 9.
Structural analysis of the ligaments: (a) Deformation in MCL; (b) Deformation in LCL.
Fig 10.
Structural analysis with implant: (a) Total deformation of the knee joint; (b) Stress in the knee joint.
Fig 11.
Structural analysis with the implant in femur bone.
Fig 12.
Structural analysis with implant: (a) Stress in femoral component; (b) Deformation in polyethylene spacer.
Fig 13.
Structural analysis with implant: (a) Stress in tibia component; (b) Deformation in tibia.
Fig 14.
Structural analysis with implant: (a) Deformation in MCL; (b) Deformation in LCL.