Long-term outcome of cementless total hip arthroplasty with threaded Tropic® acetabular cup and Corail® femoral stem

This study investigates the clinical and radiological results of a tapered femoral stem (Corail®) uncemented threaded acetabular cups (Tropic®) in addition an analysis complications retrieved implants was conducted. Between January 1990 September 1998, 301 total hips arthroplasties 268 patients were implanted. 78 (87 hips) had died 9 (12 been lost to follow-up, leaving at time latest follow-up 180 (202 hips). The mean age surgery 56,1 (27-75) years. Of 154 unrevised hips, median Harris Merle d´Aubigne Postel hip scores 83,3 points 15,3 respectively follow-up. 16.9 years (10,4-25). No component revised for aseptic loosening ; osteolysis observed 9,5% (13 stems). 48 (23%) 27 (56,2%) needed revision because massive polyethylene wear. Pelvic found out 80 (58,8%). 87 (63,9%) showed signs progressive wear liner, more than 2mm hips. Kaplan-Meier survivorship 15 81.2% with any reason (85.8% mechanical or radiographic loosening). High rates high prevalence pelvic are serious matters these types so we decided abandon concept cup design favor press-fit cup.