Acetabular Component Migration

Description

Professor Dominic Meek gives gives his expert insights and discusses the surgical treatment plan for a 73-year-old patient with an acetabular component that has migrated upwards and outwards. He emphasizes the need to carefully evaluate the structural support of the acetabular region and the necessity of proper surgical techniques in replacing the component. Professor Meek advises removing the old components fully and assessing the installation of a trial acetabular component to evaluate stability. It underscores that if only 30-40% lateral support is available, the component is likely to tip out of position unless augmented with additional support, such as a superior augment. He touches on the cost-effectiveness of custom-made implants and identifies scenarios where they are necessary, particularly with significant bone loss in the pelvic structure. Additionally, Professor Meek mentions alternative augmentation techniques, including using porous metal augments directly attached to supportive structures, or cementing standard components beneath augmentations as recognized practices.


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DOI: 10.1302/3114-251269

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