Study shows low linear wear rate in hips with X3 crosslinked polyethylene
Published date : 22 May 2012
Article date : 22 May 2012
In a prospective multicentre study D’Antonio et al followed 167 hips in 155 patients and measured linear wear at up to 5 years. Patients received the Stryker Secur-Fit stem, a Trident acetabular socket, a 32mm head and a 0 degree X3 liner. The average wear rate was 0.015mm per year over 5 years and was tolerant of different cup inclinations, although one outlier with a 72 degree cup inclination had increased wear. The authors state this is a 58% improvement over historical controls.
D'Antonio JA, Capello WN, Ramakrishnan R. Second-generation Annealed Highly Cross-linked Polyethylene Exhibits Low Wear. Clin Orthop Relat Res. 2012 Jun;470(6):1696-704. Epub 2011 Dec 9.
