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Journal of the American Animal Hospital Association 44:180-197 (2008)
© 2008 American Animal Hospital Association

Retrospective Study

Management of Humeral and Femoral Fractures in Dogs and Cats With Linear- Circular Hybrid External Skeletal Fixators

Kristin A. Kirkby, DVM, MS, Daniel D. Lewis, DVM, Diplomate ACVS, M. Pilar Lafuente, DVM, PhD, Robert M. Radasch, DVM, MS, Diplomate ACVS, Noel Fitzpatrick, MVB, Cert SAO, Cert VR, MRCVS, James P. Farese, DVM, Diplomate ACVS, Jason L. Wheeler, DVM, MS, Diplomate ACVS and Jorge A. Hernandez, DVM, MPVM, PhD

From the Departments of Small Animal Clinical Sciences (Kirkby, Lewis, Lafuente, Farese, Wheeler) and Large Animal Clinical Sciences (Hernandez), College of Veterinary Medicine, University of Florida, 2015 SW 16th Avenue, Gainesville, Florida 32610; Dallas Veterinary Surgical Center (Radasch), 4444 Trinity Mills Road, Suite 203, Dallas, Texas 75287; and Orthopedic and Neurology Referrals (Fitzpatrick), Tilford, Farnham, Surrey, United Kingdom GU102DZ.

Linear-circular hybrid fixators were used to stabilize humeral and femoral fractures in 21 dogs and five cats. Twenty-two of 24 fractures with sufficient follow-up radiographic evaluation obtained union. Time to radiographic union ranged from 25 to 280 days (mean ± standard deviation [SD] 110±69 days; median 98 days). Eleven animals developed minor and two dogs developed major pin and/or wire tract inflammation. Functional outcome was rated as excellent (n=16), good (n=5), and fair (n=3) at the time of final long-term assessment (range 4.5 to 60.0 months; mean ± SD 28.4±15.4 months; median 28.5 months). Follow-up information was unavailable for two animals. Hybrid fixators were useful constructs for stabilization of humeral and femoral fractures, particularly fractures with short, juxta-articular fracture segments.






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