Influence of Prosthetic Design on Squeaking after Ceramic-on-Ceramic Total Hip Arthroplasty

Autor: David J. Peterson, Calvin A. Spellmon, Ryan L. Bliss, Raghavendran Seethala, Todd V. Swanson
Rok vydání: 2010
Předmět:
Zdroj: The Journal of Arthroplasty. 25:e32
ISSN: 0883-5403
DOI: 10.1016/j.arth.2010.01.040
Popis: 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.
Databáze: OpenAIRE