Validation of Model-Predicted Cementless Patella Displacements During Lunging


Improvements in the design of modern cementless patellar implants have sought to mitigate historic failure mechanisms, such as fracture, dissociation of the polyethylene, and aseptic loosening. Understanding the worst-case loading conditions for patellar implant-bone micromotions is critical to evaluate the efficacy of novel patellar implant designs in preventing aseptic loosening. Accordingly, the objective of this study was to develop a patellar micromotion in vitro experiment and corresponding validation of computational models for the prediction of patellar micromotions.