Treatment of a chronic tarsometatarsal luxation in a cat by partial tarsal arthrodesis using biaxial plating

A 2‐year‐old, male, neutered, Maine Coon crossbreed cat, weighing 4.2 kg, presented to a referral veterinary hospital for an open tarsometatarsal fracture‐luxation of the right pelvic limb and a coxofemoral joint luxation of the left pelvic limb. The cat had been missing for 7 weeks before being recovered with multiple orthopaedic injuries. The cat underwent surgical treatment for the coxofemoral luxation with femoral head and neck ostectomy and treatment of the tarsometatarsal fracture‐luxation with partial tarsal arthrodesis utilising biaxial plating. Explantation of the lateral partial tarsal arthrodesis plate occurred 4 months later due to an intermittent seropurulent draining tract associated with the implant. The owners reported that the cat had returned to normal activity 6 months later, with no evidence of lameness in either pelvic limb or re‐development of a draining sinus. To the authors’ knowledge, this is the first case report of partial tarsal arthrodesis utilising biaxial plating in a cat.