Abstract
We retrospectively reviewed and compared the outcomes of 15 one-stage metatarsal lengthenings with intercalary bone graftings in 10 patients with those of nine metatarsal lengthenings by callotasis in five patients younger than 15 years. In the one-stage lengthening group, the diaphyseal osteotomy site was gradually distracted intraoperatively for 20-30 min to relax the surrounding soft tissues. In the callotasis group, lengthening was achieved with mini-Orthofix M-100. There was little difference in the outcomes between the two groups in terms of length gain, percentage increase, and complications. However, the period to achieve bony consolidation was longer in the callotasis group (2.7 months/cm) than in the one-stage lengthening group (1.5 months/cm). No case of neurovascular impairment was found in both groups.
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