Partial Ulnar Osteotomy With Free Autogenous Fat Grafting for Treatment of Radius Curvus in the Dog

The efficacy of free autogenous fat grafts in inhibiting healing of partial ulnar ostectomies was investigated. Fat grafts did impede or prevent bone union in the treated ulnar ostectomies. Protection from forced weight bearing on the operated limb by splinting minimized varus deformity of the radius and ulna, and enhanced the survival of the fat graft and the formation of an ulnar nonunion. The procedure was then applied to treatment of radius curvus resulting from surgically induced premature distal ulnar physeal closure. Partial ulnar ostectomy with free autogenous fat grafting released the ulnar restraint on radial growth and allowed partial correction of the degree of radial curve associated with premature distal ulnar physeal closure.

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