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  • Title: Midterm results of 506 solid trispiked reflection cementless acetabular components for primary total hip arthroplasty.
    Author: Corten K, McCalden RW, Teo Y, Charron KD, MacDonald SJ, Bourne RB.
    Journal: J Arthroplasty; 2011 Dec; 26(8):1350-6. PubMed ID: 21266305.
    Abstract:
    The purpose of this prospective study was to evaluate the outcomes and survivorship of a trispiked, sintered bead-coated titanium shell with a polished inner surface, no screw holes, and an improved locking mechanism. A total of 506 total hip arthroplasties with a minimum 5-year follow-up were available for review at a mean of 7 years (range, 5-11 years). Three sockets (0.6%) were revised for reasons other than aseptic loosening, and 14 (2.8%) polyethylene liners were exchanged. There was no difference in revision rate between non-cross-linked and highly cross-linked liners (P = .4). There were no cases of radiographic loosening. Retroacetabular osteolysis was identified in 2%. The overall 5-year and 10-year Kaplan-Meier survivorship was 97.5% and 97.4%, respectively, whereas survivorship of the shell was 99.8%.
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