USE OF AVIAN CORTICAL XENOGRAFT (Gallus gallus domesticus - LINNAEUS, 1758) FOR THE REPAIRMENT OF FEMORAL DIAPHYSIS OSTECTOMY IN THE CAT.

Abstract

The aim of this study was to evaluate the use of avian cortical bone xenograft (Gallus gallus domesticus) preserved in 98% lycerol associated with bone plates as a fixation method for segmental femoral ostectomies. Eight adult cats of either sex were divided into four groups with two animals each. Clinical, surgical, radiographic and macroscopic examinations were performed. Radiographic evaluation was done weekly until time of euthanasia at 30, 60, 90 and 120 days after surgery for each group. Radiographic and macroscopic evaluations at 120 days revealed partial absorption of the bone graft and mild callus formation, followed by instability at the bone/graft interface. Due to the delay in bone union and remodeling, it was concluded that avian xenograft, as used in this experiment with cats, was not a satisfactory option for the orthopedic routine. KEY-WORDS: Xenograft. Bone substitution, orthopedic, cats.