Cementless total hip arthroplasty with the rectangular titanium Zweymüller stem : A concise follow-up, at a minimum of fifteen years, of a previous report

Between October 1986 and November 1987, 208 total hip arthroplasties were performed with use of the cementless Zweymüller stem and a threaded cup in 200 consecutive patients. Of 102 patients (108 hips) who were available for follow-up at a minimum of 180 months postoperatively, eighty-three (eighty-...

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Bibliographic Details
Published in:Journal of bone and joint surgery. American volume 2006-10, Vol.88A (10), p.2210-2215
Main Authors: GRÜBL, Alexander, CHIARI, Catharina, GIUREA, Alexander, GRUBER, Martin, KAIDER, Alexandra, MARKER, Martina, ZEHETGRUBER, Harald, GOTTSAUNER-WOLF, Florian
Format: Article
Language:English
Subjects:
Adult
Aged
Arthroplasty, Replacement, Hip
Biological and medical sciences
Diseases of the osteoarticular system
Female
Follow-Up Studies
Hip Injuries - surgery
Hip Prosthesis
Humans
Joint Diseases - surgery
Male
Medical sciences
Middle Aged
Orthopedic surgery
Prosthesis Design
Prosthesis Failure
Reoperation
Retrospective Studies
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Time Factors
Titanium
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Summary:Between October 1986 and November 1987, 208 total hip arthroplasties were performed with use of the cementless Zweymüller stem and a threaded cup in 200 consecutive patients. Of 102 patients (108 hips) who were available for follow-up at a minimum of 180 months postoperatively, eighty-three (eighty-nine hips) had the primary joint replacement still intact. No stem had been revised because of aseptic loosening, but we found various degrees of osteolysis around sixteen (18%) of the implants. The probability of survival of the stem at fifteen years was 0.98 (95% confidence interval, 0.96 to 1.00). The probability of survival of the cup was 0.85 (95% confidence interval, 0.79 to 0.91).
ISSN:0021-9355
1535-1386
DOI:10.2106/00004623-200610000-00013