Liner Dissociation in Total Hip Arthroplasty: An Underestimated Risk Associated with Ceramic Liners-A Narrative Review.

Abstract

Total hip arthroplasty (THA) is a widely performed procedure that significantly enhances quality of life for patients with hip joint issues. The introduction of ceramic components in hip replacements has improved wear resistance and biocompatibility, but ceramic liner dissociation, though rare, remains a serious complication often necessitating revision surgery. This review synthesizes research on the prevalence, causes, and management of ceramic liner dissociation in THA. Key factors contributing to dissociation include improper component placement, liner locking mechanism failure, and specific surgical techniques. Diagnosis is often subtle, requiring imaging for confirmation. Management strategies emphasize precise surgical technique, component fit, and careful handling during revision. The review highlights the importance of understanding biomechanical factors to reduce complication risks and optimize outcomes.