Block allografts in revision total hip arthroplasty.
We report on 61 consecutive cemented acetabular revisions in which block allografts were used to reconstruct large defects. After a mean follow-up of 6.5 years, we observed satisfactory results when grafts had been rigidly fixed. Additional buttress-plates can improve the outcome. Paprosky type 3B defects had a double risk of failure. Cup migration had a 56% predictive value for failure. Several metal-backed cups failed, although the graft remained intact. There was a good improvement in functional outcome, which did not deteriorate up to a maximum follow-up of 11 years. Cemented revision total hip arthroplasty with the use of block allografts can give acceptable results in the medium to long term.
Somers
J F A
JF
Jan Yperman Hospital, Ypres, Belgium.
Timperley
A J
AJ
Norton
M
M
Taylor
R
R
Gie
G A
GA
D000077:Acetabulum / Q000601:surgery; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D016025:Bone Transplantation; D019544:Equipment Failure Analysis; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012086:Reoperation; D012189:Retrospective Studies; D014184:Transplantation, Homologous; D016896:Treatment Outcome