CEMENTATION OF AN ALL POLYETHYLENE SOCKET INTO A WELL-FIXED ACETABULAR METAL SHELL DURING REVISION TOTAL HIP ARTHROPLASTY: REPORT OF FIVE CASES

BACKGROUNDDuring revision hip arthroplasty, removal of a well-fixed, ingrown metal acetabular component may not be possible. Therefore, a new polyethylene liner can be cemented into the existing shell via the cement locking mechanism. We report the indications, technique, and results of cementing an acetabular liner into a well-fixed cementless acetabular shell.PATIENTS AND METHODSAll patients were given informed consent to participate in this study, and the study was approved by our hospital institutional review board. Of 95 revision total hip arthroplasty (THA) between 2005 and 2014, five hips in 5 patients (4 female and a male) were operated by the cemented socket into metal shell technique. The mean age was 70.6 years (range, 59–84 years) (Table 1).Operative TechniqueAll operations were performed with the patient in the lateral decubitus position and using a posterolateral approach without osteotomy of the greater trochanter. After removal of broken polyethylene liner, an all-polyethylene socket (manu...