Crossett Larry
University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Orthopedics. 2006 Sep;29(9 Suppl):S17-22.
The low contact stress knee design was one of the first designs to become widely available and popular for total knee arthroplasty. The low contact stress knee was initially designed to address wear due to high contact stresses seen in fixed-bearing designs. Today, nearly 30 years after its introduction, the technology behind the knee remains just as relevant. Many of the original innovations in early low contact stress knee systems are still in use today. New innovations, like a new instrument set and the advent of computer-assisted surgery, have added to the success of the technology. The history of this innovative design is discussed with special consideration given to the specific design principals that have improved the basic design over the past three decades.
低接触应力膝关节设计是最早广泛应用且受全膝关节置换术欢迎的设计之一。低接触应力膝关节最初设计的目的是解决固定平台设计中出现的高接触应力导致的磨损问题。如今，在其问世近30年后，该膝关节背后的技术仍然具有重要意义。早期低接触应力膝关节系统的许多原始创新至今仍在使用。新的创新，如一套新的器械以及计算机辅助手术的出现，进一步提升了该技术的成功率。本文将探讨这一创新设计的历史，并特别考虑在过去三十年中改进基本设计的具体设计原则。
