Harvie P, Kemp M, Whitwell D
Oxford Joint Reconstruction Service, Nuffield Orthopaedic Centre, Oxford, UK.
Hip Int. 2007 Oct-Dec;17(4):241-4. doi: 10.1177/112070000701700410.
Recurrent dislocation after reconstructive hip surgery remains a challenging problem to treat. Constrained acetabular components can provide an excellent solution, in selected patients. Failure of constrained components may still occur despite excellent component implantation and occurs at the liner-shell and shell-bone interfaces usually as a result of trauma or aseptic loosening. We describe the failure of a Trident bipolar acetabular component at its bipolar/insert interface, a previously unreported mode of failure.
髋关节重建手术后复发性脱位仍然是一个难以治疗的挑战性问题。对于选定的患者，限制性髋臼组件可以提供很好的解决方案。尽管组件植入效果良好，但限制性组件仍可能失败，通常由于创伤或无菌性松动，在衬垫-外壳和外壳-骨界面处发生。我们描述了一个三叉戟双极髋臼组件在其双极/插入界面处的失败，这是一种以前未报道过的失败模式。
