Fracture of the Humerus in Cats
By: Dr. David Diamond
After surgery and discharge from the hospital, the cat must be restricted from activity to allow the fracture to heal. Activity must be restricted for several weeks after surgery. The duration will vary depending on the severity of the injury, the type of fixation that was used, and the age of the animal. Restricted activity means that the cat should be kept confined to a carrier, crate, or small room whenever he cannot be supervised, the animal cannot play or rough-house, even if he appears to be feeling well, and the use of stairs should be limited and outdoor walks should be just long enough for the cat to relieve himself and then should be returned indoors for more rest.
Cats whose fracture was repaired with an external fixation device will have pins exiting the skin. The "pin tracts" should be monitored daily for excessive swelling or discharge.
Some discharge is normal and any crusty build-up that occurs at these sites can be gently cleaned with warm water.
Analgesics (pain medications) or anti-inflammatories should be given as directed by the veterinarian. Analgesics, such as
butorphanol (Torbugesic®) can cause sedation, and anti-inflammatories, such as aspirin, can cause upset stomach. Your veterinarian should be informed if any adverse side effects do occur.
The skin incision needs to be monitored daily for signs of excessive swelling or discharge. These can indicate problems with the incision or possibly infection. If at any point prior to the recheck radiographs being taken the animal stops using the leg again after some improvement following surgery, there could be a problem.
Several weeks after surgery, the humerus will need to be radiographed again to make sure the bone is healing properly. If the healing has occurred as expected, the external fixator, if present, will be removed and the cat's activity level will be allowed to increase slowly back up to normal over the next few weeks.
In general, any other implants that were used in the repair will be left in place unless they cause a problem at some point in the future. Potential problems can include migration (movement) or infection of the implant.
