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. 2006 Oct;88(10):2210-5.
doi: 10.2106/JBJS.E.00810.

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

Alexander Grübl  1 , Catharina Chiari, Alexander Giurea, Martin Gruber, Alexandra Kaider, Martina Marker, Harald Zehetgruber, Florian Gottsauner-Wolf
Affiliations

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

Alexander Grübl et al. J Bone Joint Surg Am. 2006 Oct.

Abstract

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).

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