Abstract
The aim of this study was to present two patients with lower limb posttraumatic angular deformity treated by dynamic hinged external fixation. CD-V mode Mitkovic type external fixator had been used in both cases for correction of these deformities. The method is based on hemicallotasis - bone callus distraction after a partial transversal bone cut (hemocorticotomy). The first patient had varus-recurvatum posttraumatic deformity of the ankle joint. Operation time was 65 min and hospital stay was 9 days. Superficial pin-track infection was resolved by the pin removal and by daily wound toilette. The second patient had varus-antecurvatum malunion deformity of the femoral diaphysis. Operation time was 50 min and hospital stay was 6 days. Mild knee contracture had been successfully treated by physical therapy. Angular deformity correction had been performed by distraction (for the first patient) and compression (for the second patient) in the fixator frame. Hemicallotasis of femur or tibia using CD-V mode Mitkovic type external fixator is a good alternative in the treatment of posttraumatic lower limb angular deformities, providing minimal surgical trauma and maximal use of the bone osteogenetic capacity. Gradual compression or distraction in the fixator frame allows to perform accurate angular correction in both coronal and sagital plane in one act.
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