Sedel L
Service de chirurgie orthopédique, hôpital Saint-Louis, Paris.
Rev Prat. 1994 Jun 15;44(12):1580-6.
Total hip prostheses are functional for a shorter period of time in young patients than in elderly. This problem is essentially related to the production of wear debris consecutively to metal versus polyethylene friction. New materials, such as alumina, produce less debris and therefore have been used for more than fifteen years with acceptable results at ten years (> 90% of functional hips). Total hip prostheses are sometimes needed in young patients suffering of post traumatic lesions, severe osteonecrosis and early osteoarthritis. In these cases, the indication of the prostheses should be accurately discussed, since it gives very often excellent results in comparison to more conservative treatments.
全髋关节假体在年轻患者中的功能使用时间比老年患者短。这个问题主要与金属与聚乙烯摩擦产生的磨损碎屑有关。诸如氧化铝之类的新材料产生的碎屑较少，因此已经使用了十五年以上，十年时的结果可以接受（功能正常的髋关节超过90%）。患有创伤后病变、严重骨坏死和早期骨关节炎的年轻患者有时需要全髋关节假体。在这些情况下，应准确讨论假体的适应症，因为与更保守的治疗相比，它通常能产生非常好的效果。
