Clinical Research Directory

RSA Masterloc Study Australia

This is a prospective, multicentric study that aim to assess stability of a tapered porous coated stem and a cementless hemispherical acetabular component. Main Translation and rotation around the x., y-, and z-axis of the femoral and cup component by radiostereometric analysis (RSA) at immediate post op (within 5 days and before weight bearing), 6 months, 1year and 2 years

NitrX Total Knee Arthroplasty RSA

Metal hypersensitivity is a recognized complication in some patients following total joint arthroplasty. This can result in a reaction to metal particles from the implants placed in the joint and cause tissue injury. The Evolution® NitrX™ (MicroPort Orthopaedics, Memphis, TN) knee implant was designed with the addition of a coating meant to create a barrier against the release of metal ions. The primary purpose of this study is to compare the Evolution and Evolution NitrX implant (implants your surgeon uses in total knee arthroplasty surgery). This study will compare the stability of these knee implants (any movement the implant makes after surgery) through the use of specialized xrays, called "radiostereometric analysis" (RSA for short). The investigators will also compare levels of circulating metal particles with blood draws and the effects of any circulating metal with MR imaging. The investigators will also be looking at the participants clinical outcomes using joint function and patient satisfaction questionnaires. A total of 50 patients will be enrolled into the study.