Prospective clinical study using radiostereometric analysis (RSA) to evaluate fixation of a modular cemented polished femoral stem.BACKGROUND
 This stem design type has also been well studied with radiostereometric analysis (RSA) and provides a standard to evaluate alternative designs of polished tapered cemented femoral components.  This prospective study evaluates the subsidence of a polished cemented stem with a modular neck design utilising RSA.


 26 patients were prospectively enrolled in the study and 23 were available for RSA analysis at 2 years.


 The RSA subsidence pattern at 2 years of this cemented femoral stem is similar to other successful designs with long-term follow-up. 
RSA