Whiteside L A, Arima J, White S E, Branam L, McCarthy D S
Biomechanical Research Laboratory, St. Louis, MO 63044.
Clin Orthop Relat Res. 1994 Jan(298):184-90.
Cementless femoral component fixation with a modular design that achieved tight fit in the proximal and distal femur was evaluated. The base of the femoral neck made the most important contribution, but diaphyseal bony interlock also contributed significantly to immediate torsional fixation. Fluted surface and slotted distal design produced fixation that was superior to fully porous-coated and cemented cylindrical stems. Early cyclical loading improved fixation, and under moderate torsional loads (up to 20 N-m), no measurable interface slippage occurred with the modular implant.
对一种采用模块化设计的非骨水泥型股骨部件固定方式进行了评估，该设计在股骨近端和远端实现了紧密贴合。股骨颈基部贡献最大，但骨干骨交锁对即时扭转固定也有显著贡献。带凹槽表面和开槽远端设计产生的固定效果优于全多孔涂层和骨水泥固定的圆柱形柄。早期周期性加载改善了固定效果，在中等扭转负荷（高达20牛米）下，模块化植入物未出现可测量的界面滑移。
