JBJS, November 1, 2002, Volume 84, Issue 11

An Evaluation of All-Ultra-High Molecular Weight Polyethylene Unicompartmental Tibial Component Cement-Fixation Mechanisms

Richard A. Rosa, MD Jack M. Bert, MD Warwick Bruce, MD Michael Gross, MD, FRCS, FAOrthA Mike Carroll, BS Vernon Hartdegen, MS

Knee

The most common indication for revision after unicompartmental knee arthroplasty (UKA) continues to be loosening of both cemented and cementless tibial components 1,2. Minimally invasive surgical techniques have greatly increased the popularity of UKA, necessitating design improvements to maximize the fixation and implant life of tibial components. This study compared three different mechanisms of cement fixation for ultra-high molecular weight polyethylene (UHMWPe) unicompartmental tibial components under torsion and tensile loading conditions.

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