Total Hip Arthroplasty (THA) Model

Total Hip Arthroplasty (THA) Model#

Model of a total hip replacement using a contact implant model and force-dependent kinematics (FDK).

Main file: Application/Examples/THA-KneeBendDemo/THA-KneeBendDemo.main.any

This is a demo model for the simulation of a knee bend for a body model with a total hip arthroplasty (THA)using:

  • either an ideal spherical joint with joint reaction forces

  • or force dependent kinematcs and a contact model.

In the body model, the hip joint is excluded from the AnyBodyStudy and a new force dependent hip joint is included. Therefore, a acetabular cup and a femoral component [1] are included into the model and a contact force between these implants is defined. For stabiliy reasons an artifical spring is implemented to avoid the joint to disconnect.

Please notice that this simulation is only a demo example. The placement of hte implant is not based on any anatomical data. Further, the implant includes an artificial spring (in Model/ContactForces.any) element to make the simulation more robust. For each simulation, the force produced by this artifical spring should be checked to be aware of the influence of this spring on the results.