Ischial screw fixation can prevent cup migration in 3D-printed custom acetabular components for complex hip reconstruction.

ABSTRACT:

Introduction

Custom acetabular components have become an established method of treating massive acetabular bone defects in hip arthroplasty. Complication rates, however, remain high and migration of the cup is still reported. Ischial screw fixation (IF) has been demonstrated to improve mechanical stability for non-custom, revision arthroplasty cup fixation. We hypothesize that ischial fixation through the flange of a custom acetabular component aids in anti-rotational stability and prevention of cup migration.

Methods

Electronic patient records were used to identify a consecutive series of 49 custom implants in 46 patients from 2016 to 2022 in a unit specializing in complex joint reconstruction. IF was defined as a minimum of one screw inserted into the ischium passing throu

SUBMITTER: Madanipour S 

PROVIDER: S-EPMC9724270 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature