Author(s): Swanson TV, Peterson DJ, Seethala R, Bliss RL, Spellmon CA
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Abstract Squeaky ceramic-on-ceramic (COC) total hips have received much recent publicity, and implant design may be implicated. We reviewed 270 consecutive COC total hip arthroplasties in 233 patients comparing 4 implant combinations representing 4 manufacturers. A cohort (n = 45) of Stryker Trident acetabular cups paired with Stryker Accolade femoral stems showed a dramatically higher incidence of "problem squeaking"--defined as always audible to others and occurring at least once per week--with a 35.6\% incidence of squeaking and 11.1\% incidence of problem squeaking. The 3 non-Stryker designs (n = 225) revealed 3.6\% squeaking (P < .0001) and 0.44\% problem squeaking (P = .006). The Stryker system has a unique design and metallurgy. Our results suggest that although the genesis of squeaking in COC total hips is multifactorial, prosthetic design plays a key role. Copyright 2010. Published by Elsevier Inc.
This article was published in J Arthroplasty
and referenced in Orthopedic & Muscular System: Current Research