Aim of the study: In the present retrospective report, the clinical and radiographic results of implantation of the Perfecta cementless T.H.R. were analyzed, in patients who were followed for a mean period of 6.9 years.

Material and methods: Between January 1993 – March 1998, 227 Perfecta T.H.R were performed in 214 patients. Five patients died and 14 patients were lost to follow-up, leaving 195 patients (208 T.H.R) available for the study. There were 50 men and 145 women with a mean age at operation of 65 years (27–83). The most common diagnosis was primary osteoarthritis (69%). The patients were assessed clinically using the HHS and radiographically for signs of loosening, polyethylene wear and osteolytic lesions.

Results: There were 14 intraoperative femoral fissures (6%) in the metaphyseal area. The mean HHS at the most recent follow-up was 90. Four patients (2%) had moderate thigh pain. Radiolucent lines around the porous coated part of the components were not observed, and progressive loss of proximal density was not seen. In the cup, a measured migration (> 3mm) in the plain films was not seen, while stem migration was noticed in 5 hips but the patients were asymptomatic. Fifteen cups (7%) had polyethylene wear and in 12 hips (6%) small osteolytic lesions were seen. Seven hips (3%) were revised: 2 hips for deep infection, 2 for acetabular loosening and 3 for instability.

Conclusions: Our clinical and radiographic medium – term results of Perfecta cementless T.H.R are very encouraging.