Radiostereometric Analysis in Unicompartmental Knee Arthroplasty; An Analysis of Marker Placement

Background: Radiostereometric analysis (RSA) is a technique to assess early migration, which has a predictive value for early failure of unicompartmental knee arthroplasty (UKA). To successfully analyze the RSA images it is important to have a sufficient amount of visiblemarkers with an acceptable three-dimensional distribution.<br/>Objective:...

Foxpat: Training simulator for Cementless Oxford Partial Knee Replacement

The learning curve of novice surgeons takes about 25 surgeries to be proficient at the knee replacement procedure. So it is not just enough if we design efficient and more ergonomic surgical tools, it is also important to provide a learning platform for them to get better before they operate on a real patient. Although many training simulators...

Development and evaluation of a polyethylene knee insert with integrated wear sensors

Currently, measuring wear of the insert of knee implants can only be accurately done in vitro. There are yet no accurate in vivo techniques that can capture and deliver data in real time. Therefore, the main objective of the research reported in this thesis was to introduce and validate a polyethylene insert with integrated wear sensors into...

Inducible Displacement of a Knee Implant: A finite element study and validation of a loose and fixed tibial component

Introduction. Aseptic loosening is indicated as the main cause of knee implant failure. Despite all currently used techniques, it remains challenging to diagnose an aseptic loose knee implant. A promising technique to reveal aseptic loose related implant motions is inducible displacement (ID). ID measurements are used to detect implant motion...