In Vivo Performance of Moderately Crosslinked, Thermally Treated Polyethylene in a Prospective Randomized Controlled Primary Total Knee Arthroplasty Trial.

Autor: Kindsfater KA; Orthopaedic Center of the Rockies, Fort Collins, Colorado., Pomeroy D; The Arthroplasty Foundation, Louisville, Kentucky., Clark CR; University of Iowa Hospitals and Clinics, Iowa City, Iowa., Gruen TA; Zonal Concepts, Wesley Chapel, Florida., Murphy J; DePuy Synthes Joint Reconstruction, Warsaw, Indiana., Himden S; DePuy Synthes Joint Reconstruction, Warsaw, Indiana.
Jazyk: angličtina
Zdroj: The Journal of arthroplasty [J Arthroplasty] 2015 Aug; Vol. 30 (8), pp. 1333-8. Date of Electronic Publication: 2015 Mar 07.
DOI: 10.1016/j.arth.2015.02.041
Abstrakt: Cross-linked bearings have been developed for use in total knee arthroplasty that exhibit improved wear properties, but at the expense of a decrease in mechanical strength of the cross-linked material. Adoption has been slow due to fears of mechanical failure secondary to this alteration in mechanical properties. This prospective, randomized study compared mid-term survivorship, clinical and radiographic results of a conventional polyethylene (GVF) to a cross-linked polyethylene (XLK) in total knee prostheses of the same design. At minimum 5-year follow-up there was no difference in survivorship, clinical performance or radiographic findings between the groups. There were no revisions for polyethylene wear, osteolysis or tibial insert dissociation. Most importantly, there were no revisions for mechanical failure or fracture of the polyethylene bearing in either group.
(Copyright © 2015 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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