Cementless acetabular revision for aseptic failure of cemented hip arthroplasty

This study is a 5- to 11-year retrospective followup of 40 hips in 33 patie nts with cementless acetabular revision for aseptic failure of a cemented t otal hip arthroplasty. A porous coated, Harris-Galante acetabular component was used in all revisions. Thirty-eight of the 40 hips received acetabular bone grafting at revision, The mean Harris Hip Score improved from II poin ts just before the index cementless revision to 87 points at the most recen t followup. Twenty-nine of 40 (73%) hips were classified as having a good o r excellent result. Radiolucencies were observed in seven of the 40 (18%) h ips at the most recent followup, but none of these radiolucencies were comp lete or progressive, Fire of the 40 (13%) hips were rated as failures and r equired repeat revision. Two (5%) of these failures were caused by aseptic loosening, with both hips having severe acetabular hone damage at the time of the index revision, This failure rate for aseptic loosening was less tha n that reported for cemented acetabular revision, thereby confirming the ef ficacy of cementless acetabular components in revision hip surgery in the i ntermediate term.