Litwin Y, Schauer L, Pauker M, Dror M, Seelenfreund M
Int Surg. 1982 Oct-Dec;67(4 Suppl):543-5.
A two component femoral head prosthesis consisting of a metal femoral stem with a small low friction head and HDP cup fitting the acetabulum was used in 80 patients with intra-articular femoral neck fracture; this allowed immediate and relatively painless ambulation and weight bearing. Most of the movement occurs between the stem and cup, so the pain in the joint is eliminated. Except for two cases of technical error there were no signs of instability. It appears that this kind of endoprosthesis may be an answer to the problem of early and painless ambulation in elderly patients with subcapital femoral fracture.
80例股骨颈关节内骨折患者使用了一种双组件股骨头假体，该假体由带有小的低摩擦头的金属股骨干和适配髋臼的高密度聚乙烯杯组成；这使得患者能够立即且相对无痛地行走和负重。大部分运动发生在股骨干和髋臼杯之间，因此关节疼痛得以消除。除两例技术失误外，未出现不稳定迹象。看来这种类型的内置假体可能是解决老年股骨颈下骨折患者早期无痛行走问题的一种方法。
