Correction of Angular Deformities with Ilizarov External Fixator in Dogs

Abstract

In this study, ten dogs with different breed, ages and genders were used for treathment of angular deformities. The limb deformities were discovered from the mediolateral and craniocaulal images of the preoperative radiographs. Apex of the deformity and the deformity plane were determined using graphical methods. Following ulnar ostectomy, rings were fixed to the distal and proximal segment of radius mall cases. After fixation of the wires to the ring. radial osteotomy was performed. Deformations were corrected immediately in two case and progressively in eight cases. Latency period ranged from 3-7 days (in immature dogs 3-5 days, mature dogs 5-7 days). A distraction rate of 1 mm day(-1) was used in all dogs. Distraction was performed twice daily in all dogs. Minor wire track inflamation occured in eight dogs with three dogs also having wire track infection. No post-operative neurological impairment was observed in any dogs. Follow-up evalution by clinical and radiological examination ranged from 95-150 days. Limb functions were assessed to be excellent in four dogs, good in four dogs and fair in two dogs.