PFC Modular Total Knee Replacement System - Middle Term Results.

Background. Total knee replacement, which is now the preferred solution for severe primary osteoarthritis, rheumatoid arthritis or posttraumatic osteoarthritis, is indicated in patients of various pathological changes and deformities. Every joint requires an individual treatment.<br /> Material and method. We performed a prospective study of 500 cemented primary PFC modular total knee replacement implanted from 1991 to 2001, involving 350 prostheses (55 bilateral) in 295 patients with diagnosis of primary osteoarthritis, rheumatoid arthritis or posttraumatic osteoarthritis. The average age of our patients was 68,3 years (range 2,2-70,4 years). A survivorship curve was constructed based on revision surgery due to aseptic loosening.<br /> Results. According to the Knee Society Clinical rating System, the results were excellent in 288 knees, good in 45 knees, poor in 13 knees and extremely poor 4 knees. We observed posterior dislocation of the tibial component in2 cases. In one patient we had to replace the implant in a two-stage procedure because of septic loosening.<br /> Conclusions. The PFC total knee system seems to be a prosthesis of good quality, permitting, the solution of almost any problem that may arise in both primary and revision cases. We achieved good outcomes and high patient satisfaction.