The use of epoxy putty external-skeletal fixation in the management of calcaneal fractures in two toy breed dogs

Abstract

A 1.63-kg Poodle dog and a 2.25-kg Bichon Frise dog were presented for evaluation of nonweight-bearing hindlimb lameness after a falling injury. On radiography, mid-body calcaneal fractures without suspected articular involvement were revealed in both dogs. Both fractures were reduced in a closed fashion and stabilized with external skeletal fixation (ESF) using epoxy resin. The ESF structure was solely applied to the calcaneus without involving other bones, which allowed normal range of motion of the tarsal joint. No postoperative crepitation or limited range of motion was identified during passive motion of either calcaneus. Postoperative radiographs showed appropriately aligned calcaneal fractures, and the dogs recovered normal ambulation within 3 weeks. In both dogs, complete healing of the calcaneal fractures was identified on radiographs taken 6 weeks postoperatively. Based on the excellent outcomes, including satisfactory functional recovery and complete bone healing, ESF with closed reduction is considered a suitable surgical option for stable and successful biologic osteosynthesis of calcaneal fractures, especially in very small dogs, in which surgical stabilization with traditional implants is typically challenging.