Late Dislocations After Total Hip Arthroplasty: Is the Bearing a Factor?
Siddharth M Shah, William L Walter, Stephen M Tai, Michelle F Lorimer, Richard N de Steiger
JOURNAL OF ARTHROPLASTY | CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS | Published : 2017
BACKGROUND: Dislocation is a leading cause of revision after primary total hip arthroplasty (THA). Although more common in the first few years after the procedure, dislocation can occur at any time. This study investigated the difference in late dislocation in ceramic-on-ceramic (CoC) bearings compared with metal-on-polyethylene and ceramic-on-polyethylene bearings in THA. METHODS: Data were used from the Australian Orthopaedic Association National Joint Replacement Registry, and the cumulative percent revision for dislocation was estimated using the Kaplan-Meier method for the different bearing surfaces. There were 192,275 THAs included in the study with 101,915 metal-on-cross-linked polyet..View full abstract
The Australian Government funds the Australian Orthopaedic Association National Joint Replacement Registry through the Department of Health and Ageing.