Corrective tibial osteotomy for genu recurvatum by callus distraction using an external fixator

Genu recurvatum due to an osseous abnormality is a condition that rarely requires surgical intervention. When necessary, the operative solution usually considered is an opening wedge osteotomy using bone graft and plate fixation. The donor site (usually the iliac crest) has a well reported morbidity with a further procedure being required to remove the plate. We report two cases treated by a hemicorticotomy and callus distraction (hemicallotasis) of the tibia using an external fixator. Correction was performed under supervision as an out-patient. Hospital stay was short, the morbidity of the donor site was eliminated, further procedures for removal of the plate were unnecessary and mobility of both the patient and his joints was maintained throughout the period of treatment. Satisfactory correction of the deformity was obtained in both cases.