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  • Title: Bone healing following two methods of non-rigid tibial osteotomy repair in the dog.
    Author: Coetzee GL.
    Journal: J S Afr Vet Assoc; 1993 Mar; 64(1):20-7. PubMed ID: 8496890.
    Abstract:
    Bone healing was assessed after stabilisation of transverse tibial osteotomies in adult Beagles (n = 6) with intramedullary pins, in conjunction with modified Mennen clamp-on plates to counteract rotation. Post-operative return to full limb function was compared to that after use of a two-pin, uniplanar (Type I) external skeletal fixator and an intramedullary pin combination (n = 6). Additional external splinting was not used. The dogs were graded weekly after exercise, according to a functional performance grading scale. All of the clamp-on plates were well tolerated. Bony periosteal callus incorporated the crimp arms and the mean time required for full limb function was 7 weeks. The clinical performance of the dogs, with the external skeletal fixators and intramedullary pins, was consistently lower during the initial 4 weeks. Soft tissue swellings with pin-tract drainage occurred, but resolved following removal of the transcortical fixation pins. These dogs returned to full limb function with bony bridging callus after 8 to 9 weeks. Quantitative assessment of the bone activity, using sequential scintigraphy at weekly intervals, suggested consolidation of the callus 6 weeks after the operation for the clamp-on plate and pin combination, and at 7 weeks for the external skeletal fixator and pin combination.
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