An Analysis of a National Administrative Dataset Demonstrating No Evidence of Increase in Elective Primary Total Hip Arthroplasty Dislocation Rates When Postoperative Hip Precautions are Not Used.

Background: The purpose of this study is to determine whether there is a higher dislocation rate when postoperative hip precautions are not used for primary total hip arthroplasty (THA).

Methods: A survey was conducted of the hip precautions used by orthopaedic departments in England performing elective primary THA. From the responses to the survey an interrupted time series analysis was performed using the hospital admissions data from the Hospital Episode Statistics (HES) database during the period April 1, 2011 to December 31, 2019 and subsequent dislocations of these prostheses up to June 30, 2020.