A retrospective analysis of anterior calcaneal osteotomy with allogenic bone graft

Anterior calcaneal osteotomy (ACO) with extension bone graft is commonly employed in the treatment of symptomatic supple, hypermobile flatfoot in adolescent as well as adult (>or= 18 years of age) patients. Although autogenous bone graft has been considered the gold standard, allogenic bone is widely used for this procedure because it is readily available, requires no additional procedure for procurement and has incorporation rates similar to autogenous bone graft. There is increasing agreement among surgeons that the union rates with allograft bone are comparable with that observed with autograft bone when used in the ACO. We reviewed the medical records of 51 consecutive patients who had undergone 53 ACO with allogenic bone graft for the repair of flatfoot deformity in an effort to further evaluate outcomes associated with the use of allogenic bone graft. All of the patients had at least 12 months of follow-up. The mean time to graft incorporation was 9.10 +/- 1.54 weeks for adolescents and 9.81 +/- 2.13 weeks for adults (P = .0149), The incidence of graft incorporation (bone union) was 100% and 90% (P = .1391) in the adolescent and adult groups, respectively. Complications included lateral column pain, sinus tarsitis, nonunion, calcaneocuboid capsulitis, complex regional pain syndrome, incisional dehiscence, and sural neuritis; and all of the complications occurred in the adult group. The results support the understanding that ACO with allogenic bone graft is a reasonable alternative to autograft bone graft in the treatment of flexible flatfoot in adolescent and adult patients.