Abstract
AimTo compare two different types of inserts: ultra-high molecular weight polyethylene (UHMWPE) and cross-linked polyethylene with a quantitative and qualitative study of polyethylene wear particles in synovial fluid 3 years after total knee arthroplasty. Material and methodsA prospective, randomised, controlled cohort study with blinded evaluation was carried out on 25 patients undergoing staged bilateral total knee replacement, 6 months apart. Knee arthrocentesis was performed on 12 patients 3 years after surgery, and the polyethylene particles were analysed. ResultsNo significant differences were found in the number of particles generated by the two different types of inserts at 3 years from total knee arthroplasty (3000×: x¯ cross-linked=849.7; x¯ UHMWPE=796.9; p=.63; 20,000×: x¯ cross-linked=66.3; x¯ UHMWPE=73.1; p=.76). Likewise, no differences in the probability of finding elongated (χ2=.19; p=.66) or rounded (χ2=1.44; p=.23) particles in both types of inserts were observed. However, the probability of finding fibrillar particles is 3.08 times greater in UHMWPE. ConclusionsCross-linked polyethylene does not significantly reduce the generation of polyethylene particles in patients with total knee arthroplasty, 3 years after the surgical procedure.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Revista española de cirugía ortopédica y traumatología (English edition)
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
