Highly Crosslinked Polyethylene in Posterior-Stabilized Total Knee Arthroplasty
In Vitro Performance Evaluation of Wear, Delamination, and Tibial Post Durability
Alex P. Stoller, MS, Todd S. Johnson, PhD, Oludele O. Popoola, PhD, Steven M. Humphrey, MS, and Cheryl R. Blanchard, PhD
The Journal of Arthroplasty Volume 26, Issue 3 , Pages 483-491, April 2011
Abstract: Recent advances in total knee arthroplasty (TKA) include the development of highly crosslinked polyethylene (HXPE). To assess the suitability of using HXPE in posterior-stabilized TKA, knee simulator wear testing and a novel tibial post durability test were performed on a modern posterior-stabilized implant design with both conventional polyethylene (CPE) and HXPE materials. The laboratory testing reproduced clinically relevant wear and tibial post damage mechanisms. For the designs tested, wear volume was reduced by 67% to 75% for aged HXPE compared with aged CPE. Components of HXPE also demonstrated superior tibial post durability compared with the CPE design, despite the use of unaged material to represent best-case CPE tibial post strength. With appropriate design considerations, HXPE can be successfully incorporated into a posterior-stabilized TKA.
- Cementing the Tibial Component in Total Knee Arthroplasty
- Highly Crosslinked Polyethylene in Posterior-Stabilized Total Knee Arthroplasty
- Local Infiltration Analgesia in TKA Patients Reduces
- Gender differences in the anatomy of the distal femur
- Circumpatellar electrocautery may lead to lower rate of knee pain 1 year after TKA
- Early Results of the Use of Tantalum Femoral Cones for Revision TKA
- Human Knee Joint Anatomy Revisited:
- Five-Year Comparison of Oxidized Zirconium and Cobalt-Chromium Femoral Components in TKA
- Is patellar resurfacing superior than nonresurfacing in tka?
- The low contact stress patellofemoral replacement