FIXATION OF THE TIBIAL COMPONENT OF TOTAL KNEE ARTHROPLASTY AFTER HIGH TIBIAL OSTEOTOMY - A MATCHED RADIOSTEREOMETRIC STUDY

To assess migration of the tibial component we used roentgen stereopho togrammetric analysis in 40 patients who had had a total knee arthropl asty after failure of a closing wedge osteotomy and compared them with 40 matched patients after primary total knee arthroplasty. We found n o difference in migration over time or in the tendency for continuous migration between the two groups, There were no differences in alignme nt or position of the knee prosthesis or in the clinical outcome. Our findings show that revision of a failed high tibial osteotomy to a tot al knee arthroplasty is effective.