Use of circular external skeletal fixator constructs to stabilize tarsometatarsal arthrodeses in three dogs

This report describes the use of circular external skeletal fixator (CESF) constructs for the stabilization of unilateral tarsometatarsal arthrodeses in three dogs with traumatic intertarsal or tarsometatarsal fracture/luxation injuries. The application of the CESF was performed following a limited approach to the intertarsal and tarsometatarsal joints. All three of the dogs developed post-operative wire tract inflammation with drainage and two dogs developed osteomyelitis. These complications resolved with systemic antibiotic administration, debridement, and/or wire removal, after which all of the dogs tolerated the CESF well and resumed weight-bearing on the affected limb. The mean time to CESF removal was 16 weeks. The CESF construct provided sufficient stabilization for progressive union of the tarsometatarsal arthrodeses with a good long-term functional outcome in all three of the dogs.