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Ask the Doctor April 2014 Issue

Dear Doctor April 2014

Helping a friendly stray

Q I am feeding an intact feral cat with whom I have formed a friendship. Recently when I fed him in the morning, I noticed that the skin behind his ears had been ripped open, probably during a fight.

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I would really like to take him to a veterinary clinic to get neutered, but I fear that the experience could cause him to leave and not return. He is very docile for an outdoor cat and seems to get along with a few outdoor cats who have been spayed or neutered. He lets me pet him and get close to him, but at this point, he will not let me pick him up. He never wants to come inside the house, even during snowstorms. What do you suggest I do?

Stanley Nasimi

A Dear Stanley: This is a familiar story and one with which I have experience myself. The correct and responsible thing to do is to apprehend this cat, to have him tested for any diseases he may be harboring — such as feline immunodeficiency virus (FIV) or leukemia — and to have him neutered. Neutering will not make him less friendly to you, but will severely curtail his fighting and thus reduce the injuries he is receiving.

In the interest of his longevity, it would be a good idea to somehow coax him into your house and to make him a house cat.

Nicholas Dodman, BVMS

Animal Behavior Center Director

Cummings School of Veterinary Medicine at Tufts University

Lameness after injection

Q My one-year-old female cat received two injections in the rear to treat an insect bite. The first injection contained an anti-inflammatory medication and the second was Benadryl. The veterinarian at the emergency clinic said that the Benadryl would burn, and my small cat screamed when it was injected.

When I got her home, her back leg on the side of the injection did not work. It just dragged behind her. The next day, she was able to get the foot under her to walk on it and that has been it for progress. She is still quite lame. My veterinarian suspected the mobility issue was related to nerve damage and thought the leg would be fine within a month’s time. Three weeks have passed and still no improvement in her gait. What do you think happened and will she ever be able to walk normally again?

Nancy Norton

A Dear Nancy: I am saddened to hear of this complication for your little cat. Each time we administer medication to a pet, there is always the potential for side effects. Local reactions are occasionally seen after the administration of any medication. Swelling and pain, bleeding — and even cancer formation — are possible.

Running down the hind leg is a major nerve called the sciatic. This nerve is located between two large muscles. Deep injections could place medication near the sciatic nerve, and swellings from the medication may injure the nerve. If the cat jumps at the wrong moment, even the needle itself may damage the nerve.

Your description of dragging the leg suggests that sciatic nerve injury may have occurred. Your doctor can perform specific tests for sciatic nerve damage. If the veterinarian’s examination is not consistent with a sciatic nerve injury, then something else is going on. A consultation with a board-certified veterinary neurologist would be warranted.

Many injection injuries do improve with time. I recommend waiting at least six to eight weeks. If there is no improvement at that point, scar tissue may be surrounding the nerve and surgical exploration may be indicated.

In the meantime, physical therapy to protect the limb and maintain normal range of motion in the joints is important. You should flex and extend the limb 30 times or so several times a day.

Michael Stone, DVM

Clinical Assistant Professor

Cummings School of Veterinary Medicine at Tufts University

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