Callotasis for Post-Traumatic Shortening and Deformity of Leg

Summary We have been performed callotasis, including hemicallotasis, in cases of more than 30 mm limb lengthening and more than 15 0 angular deformity. There were 21 cases in this series. The mean age was 29.8 years old. Ilizarov external fixator (EF) was used in 13 cases and Orthofix EF in 8. The operation site was femur in 12 cases and tibia in 9 cases. Pre-existed complications were noted to occur in 10 cases. Callotasis was indicated in 17 cases, and the average length gain was 28.4 mm. Hemicallotasis was indicated in 5 cases, and the mean degree of correction angle was 18°. Among available types of EF, Orthofix EF was suitable for proximal femoral callotasis, while llizarov EF was suitable for corrective deform­ ity using hemicallotasis and tibial callotasis. The bone healing process of callotsis was better in the absence than presence of pre-existed complication. Also, we per­ formed bone transportation using Ilizarov EF in cases of pseudoarthrosis with leg shortening and in all cases where bone grafting was unnecessary.