Early Results of 827 Trabecular Metal Revision Shells in Acetabular Revision
Eerik T. Skyttä, MD, PhD, Antti Eskelinen, MD, PhD, Pekka O. Paavolainen, MD, PhD, and Ville M. Remes, MD, PhD
The Journal of Arthroplasty, volume 26 No. 3 2011
Abstract: We evaluated the survival of 827 acetabular revisions with Trabecular Metal Revision Shell using data from a nationwide arthroplasty register. The mean age of the patients was 69.1 years. The 3-year overall survivorship was 92% (95% confidence interval, 88-95), which coincides with earlier reports. Revision rate for aseptic loosening was only 2%. The most common reason for revision was dislocation of the prosthesis with or without malposition of the socket (60%). Age was found to have significant effect on cup survivorship: each additional year in age decreased the risk of revision by 2.4% (95 % confidence interval, 0.1-4.7; P = .044). We found no differences in survival rates between aseptic and septic revisions. Furthermore, sex, diagnosis, and hospital volume did not affect the survival.
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