Liner Dissociation by Extrusion of the Acetabular Cup Fixation Screw after Total Hip Replacement: Two Cases Report.
- Author:
Yoo Sun JEON
1
;
Deuk Soo HWANG
;
Chan KANG
;
Pil Sung KIM
;
Jung Mo HWANG
;
Jae Hwang SONG
Author Information
- Publication Type:Case Report
- Keywords: Total hip replacement; Screw; Acetabular cup liner; Dissociation
- MeSH: Arthroplasty; Arthroplasty, Replacement, Hip*; Hip*; Humans; Noise; Transplants
- From:Hip & Pelvis 2013;25(3):220-225
- CountryRepublic of Korea
- Language:Korean
- Abstract: This is a report of 2 cases that showed dissociation of the acetabular cup liner by acetabular fixation screw among patients who underwent total hip replacement. Screws for fixation of the acetabular cup were used during the primary surgery in both cases. Each patient visited the out patient department complaining of pain and noise from the joint; radiologic finding revealed a collapse of the column shape bone graft area with dissociation of the acetabular cup liner. In both cases, during revision surgery, screw was extruded to the inner side of the acetabular cup, since it migrated superiorly. There has been no report of liner dissociation by extrusion of acetabular cup fixation screw after total hip replacement. Therefore, we report two cases of dissociation of the acetabular cup liner of hip arthroplasty, which occurred due to screw issues after total hip replacement with structural autogenous bone graft.
