Allografting in uncemented acetabular revision.
From 1987 to 1991, a total of 43 acetabular revisions were performed in 39 patients aged 36 to 79 years. In group A (26 revisions in 24 patients), morselized allograft was used to fill in cavitary acetabular defects, and in group B (17 revisions in 15 patients), a solid (bulk) allograft was used to reconstruct defects of the acetabular rim, mainly superiorly. An uncemented acetabular cup was used in all cases. Follow-up ranged from 4 to 7 years. Results demonstrated that while large structural or morselized allografts are useful in reconstructing the anatomy, there is a high rate of loosening due to resorption. The failure rate of bulk graft was higher than that of morselized graft, but because the bone stock in failures is usually restored, a second revision is easier.
Reikeraas
O
O
National Hospital of Orthopaedics, University of Oslo, Norway.
Folleraas
G
G
Winge
J F
JF
D000077:Acetabulum / Q000000981:diagnostic imaging / Q000601:surgery*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip; D016025:Bone Transplantation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011475:Prosthesis Failure; D011859:Radiography; D012086:Reoperation; D012189:Retrospective Studies; D014184:Transplantation, Homologous; D016896:Treatment Outcome