Ulnar interlocking intramedullary nail stabilization of a proximal radio-ulnar fracture in a dog.

OBJECTIVE: To report use of an ulnar interlocking intramedullary nail for repair of an open highly comminuted fracture of the proximal third of the antebrachium in a dog, caused by gunshot. STUDY DESIGN: Case report. ANIMALS: 1.5-year old, 60 kg, neutered male Mastiff. METHODS: An ulnar interlocking intramedullary nail was used to stabilize an open comminuted proximal antebrachial fracture and a cast applied for 4 weeks. RESULTS: Union by secondary bone healing occurred in 8 weeks. At 16 weeks, there was advanced remodeling of the radial and ulnar bony callus and fracture lines were no longer evident. Limb use was normal with normal pain free range of motion of the right elbow. CONCLUSION: Ulnar interlocking nail is a viable alternative treatment for highly comminuted fracture of the proximal third of the antebrachium in dogs.