Fever and a Swollen Leg Three Days After Cruciate Surgery

Some swelling after knee surgery is normal, but a fever with a very swollen leg a few days later raises concern for a surgical-site infection, especially in a dog who had a staph skin infection before surgery. Other possibilities include a fluid pocket (seroma), a reaction to the surgery, or rarely a blood clot or problem with the repair.

Your dog is in the right place. Ask the team what tests they're planning. Commonly these include blood tests, examining fluid from the swollen area or the joint, X-rays to check the repair and implants, and a culture so any infection can be treated with the right antibiotic. Because staph bacteria can be resistant to some antibiotics, a culture is especially important.

Most post-surgery infections can be treated, though some need longer antibiotic courses or, occasionally, implant removal once the bone has healed. Ask for an estimate for each step, since knowing the plan helps you manage the cost. If cost is a worry, ask your vet about a payment plan, or look for a low-cost clinic, humane society clinic or veterinary school near you.

See torn ACL in dogs.

This is general information, not a diagnosis. Please follow your own vet's advice.