Fornasier V L, Cameron H U
Clin Orthop Relat Res. 1976 May(116):248-52.
A study of the cement prosthesis interface has been carried out on the femoral component of 5 total hip relacements which had been in place between 7 weeks and 5 years. In every case a thin layer of connective tissue at varying stages of organization was present between the prosthesis and the cement. This suggests that the prosthesis is not rigidly fixed to the cement and is capable of micromovement. The gap presumably comes about by a combination of factors which include thermal expansion of the femoral stem, shrinkage of the cement and organization of the film of blood or tissue fluid present on the stem at the time of implantation. This information must be used when construction mathematical models of joint replacements, but its clinical significance is not yet fully clear.
对5例全髋关节置换术的股骨部件进行了骨水泥假体界面研究，这些假体已植入7周至5年。在每一个病例中，假体与骨水泥之间均存在一层处于不同组织阶段的结缔组织薄层。这表明假体并未牢固地固定在骨水泥上，能够发生微动。这种间隙可能是由多种因素共同造成的，这些因素包括股骨柄的热膨胀、骨水泥的收缩以及植入时股骨柄上存在的血液或组织液薄膜的组织化。在构建关节置换的数学模型时必须使用这些信息，但其临床意义尚未完全明确。
