Early polyethylene wear and osteolysis with ABG acetabular cups (7- to 12-year follow-up).
We reviewed 81 consecutive ABG I primary total hip replacements implanted in 72 patients between January 1993 and December 1998. The mean follow-up was 8.2 (range 7-12) years. There was significant polyethylene wear and osteolysis associated with the acetabular cup . The cumulative survival of the cup with revision being the end point at 8.2 years was 95.1% (95% CI: 92-97.6%). However, the cumulative survival of the cup with revision and aseptic loosening together was 72% (95% CI: 61-78%) and survival of the acetabular liner for wear was 62% (95% CI: 48-74%). Stem survival with revision being the end point was 100%. In spite of significant radiological failures of the cups, most patients remained asymptomatic. Though results of the ABG stems in this series were good, we advocate a regular follow-up of all these hips in view of the poor outcome of the cups.
Badhe
Sachin
S
KingsMill Hospital--Orthopaedics, 20 Bunting Street, Dunkirk Nottingham, Nottingham, NG7 2LD, UK. drsachinbadhe@rediffmail.com
Livesley
Peter
P
D000328:Adult; D001172:Arthritis, Rheumatoid / Q000601:surgery; D001672:Biocompatible Materials; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000601:surgery; D010014:Osteolysis / Q000209:etiology*; D020959:Polyethylene; D011475:Prosthesis Failure; D012086:Reoperation; D012189:Retrospective Studies
D001672:Biocompatible Materials; D020959:Polyethylene