• 作者：P. Zorrilla ; ^{pedrozorrillaribot@hotmail.com} ; L.A. Gó ; mez ; J.A. Salido
• 关键词：Artroplastia de cadera ; Desgaste de polietileno ; Componente acetabular
• 刊名：Revista Espa帽ola de Cirug铆a Ortop茅dica y Traumatolog铆a
• 出版年：2011
• 期刊代码：pca311_18884415
• 类别：med
• 出版时间：July-August 2011
• 卷：55
• 期：4
• 页码：298-301
• 文件大小：124 K

Objective

The final stages of the natural history of polyethylene wear in total hip arthroplasty by itself or dislodgement of the liner, may lead to catastrophic failure of the acetabular component. The objective is to analyse this preventable situation.

Material and methods

The medical histories of four patients with serious destruction of the acetabular component have been retrospectively analysed. The patients were all young, the polyethylene was less than 6 mm and all of them experienced a delay in the polyethylene revision.

Discussion

Close radiographic monitoring of polyethylene wear is recommended, particularly when there are risk factors.

Conclusions

The potentially serious effects of delaying a revision operation until symptoms appear should be explained to patients, who frequently do not suffer any pain and are reluctant to undergo further operations.