The Next Generation of Acetabular Shell Design and Bearing Surfaces

摘要

The R3 acetabular component represents the next generation of acetabular shell with an enhanced porous ingrowth surface (StikTite,Smith & Nephew, Memphis, Tenn) to meet the needs of both primary and revision hip arthro-plasty; an optimized locking mechanism;and the ability to accommodate polyethylene, metal or ceramic liners. This prospective clinical study reports on the safety and efficacy of the new StikTite porous ingrowth surface using radiostereometric analysis (RSA). StikTite provides a superior "scratchfit" due to its greater coefficientof friction and less micromotion usng RSA measurements.