Fracture from a dog bite in the cat: how to manage it
8-month-old cat bitten by a large dog 2 hours ago. The thigh has two small puncture wounds, subcutaneous emphysema and, on radiographs, a comminuted femoral shaft fracture. Thorax and abdomen are normal.
How should you manage this injury?
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A. As a closed fracture, because the wounds are minimal, and repair it with an intramedullary pin
Any fracture under a bite wound communicates with the outside and is contaminated. Besides, a pin alone does not stabilise a comminuted fracture.
B. As a severe open fracture: early broad-spectrum intravenous antibiotics, surgical exploration with debridement and lavage, culture and fixation that respects the soft tissues
Correct. Under almost intact skin there is usually torn, crushed muscle and devitalised tissue. Antibiotics must cover oral flora (Pasteurella, anaerobes), and fixation is chosen so as not to further compromise biology, often an external fixator or bridging plate.
C. Suture the puncture wounds and apply a compression bandage
Closing bite wounds without debridement traps bacteria in a space with dead tissue: a recipe for abscess and osteomyelitis.
D. Wait 72 hours to see whether the wound becomes infected before deciding
Waiting turns contamination into established infection. Antibiotics and wound management must start immediately.
lightbulb Key takeaway
With bite wounds, what you see is the tip of the iceberg: traction and crushing damage muscle, vessels and nerves under almost intact skin. If there are bites on the thorax or abdomen, explore them: there may be hidden perforations.
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Updated: October 31, 2026 · Educational content for veterinary professionals. It does not replace current clinical guidelines or the judgement of the attending veterinarian.