Jerry O'Riordan, Jola H. Modlinska, Noel Fitzpatrick, Russell Tucker, Russell Yeadon, Thomas J. Smith
To report surgical technique, clinical experiences, and long-term out- comes of combined intramedullary/external skeletal fixation of metatarsal (MT) and metacarpal (MC) fractures in dogs and cats.
Clinical and radiographic records of animals managed by combined intramedullary/external fixation of MT/MC fractures were reviewed. Signal- ment, fracture configuration, complications, and subjective clinical findings were recorded. Surgical technique involved retrograde intramedullary pin placement into fractured MT/MC bones, and transverse pin placement in the base of the MT/MCs or tarsal/carpal bones. Contoured pin ends were enshrouded dorsally in epoxy resin and implants maintained until fracture union. Postoperative clinical and radiographic reassessment was performed where possible.
Small breed dogs (n = 12) and 19 cats were operated. Fixator removal occurred in < 10 weeks in all cases. Complications included synostosis (n = 2), pin tract discharge (7), excessive postoperative swelling (8), skin abrasions from the frame (2), and paw distortion associated with frame impingement (2). Long-term radiography documented degenerative changes associated with MT-phalangeal or MC-phalangeal joints in 2 dogs; 7 cats, but changes were typically graded mild or moderate and affected only 1 or 2 joints.