What is Hip Dysplasia?
If you suspect your cat has hip dysplasia, watch for signs of lameness and demonstration of pain when you gently palpate the hip area. If you notice these signs, contact your veterinarian for an evaluation.
Hip dysplasia in cats is a genetically inherited malformation of the hip joint. When the ball and socket of the hip don't form properly, there is increased movement in the joint. The involved bones start to knock and rub against one another, leading to degeneration and a painful arthritis. A cat with hip dysplasia will show progressive signs of lameness like limping, unwillingness to move, continually chewing or licking the hip, and expressing pain when the hip area is touched.
Symptoms of Hip Dysplasia in Cats
The symptoms of hip dysplasia in your cat will vary depending on the amount of movement in the hip joint, and the extent of inflammation in the joint. Depending on the length and severity of the disease progression, you may notice:
- Reluctance to run, jump, or climb
- Difficulty rising
- Hind limb lameness that may be more pronounced after exercise
- Swaying or bunny-hopping when moving
- Standing with hind legs unusually close together
- Demonstration of pain in the hip joint - crying or resisting when area is touched
- Excessive licking or chewing in the hip area
Causes of Hip Dysplasia in Cats
As with dogs, hip dysplasia in cats arises from a combination of genetic and environmental factors.
There is an inherited susceptibility in some cats for dysplasia. Although any cat can develop hip dysplasia, it is more common in the following breeds:
- Maine Coon
When a cat has genes that contribute to hip dysplasia, the ball and socket joint of the hip will be more shallow than normal, resulting in excessive movement of the bones in the joint.
If a cat has a shallow hip joint, the signs and severity of the disease will vary depending on the age and the following environmental and lifestyle factors:
- Weight gain or presence of obesity
- Nutritional level
- Muscle mass in the pelvic area
Diagnosis of Hip Dysplasia in Cats
If your cat has been showing signs of lameness and pain in the hip, you should make an appointment with your veterinarian. The doctor will collect a detailed history from you. He or she will ask you about the symptoms you've been seeing and if there have been any recent events or injuries that may have led to the symptoms. Any information you have about your cat's parents may also help confirm a diagnosis.
Once the doctor has a history, he or she will conduct a thorough examination. Your vet will palpate the hips to check for loss of muscle mass and any demonstration of pain. The doctor will also manipulate affected hips to check for range of motion, signs of looseness in the hip, and any grating in the joint when it moves. Your cat's doctor may also run blood tests to check for signs of an inflammatory response.
A definitive diagnosis can be made with x-rays of the hips. The pictures will help confirm a shallow hip socket and can reveal the severity of joint degeneration. X-rays will also serve to rule out other conditions such as an acute injury in the hip, spinal cord inflammation, or a bone disease.
Treatment of Hip Dysplasia in Cats
With cats, the treatment options for hip dysplasia are fairly limited. Most measures will be non-surgical, but in advanced cases, surgery may be recommended.
In most cases, hip dysplasia in cats can be treated with lifestyle changes. You will want to make sure your cat's diet encourages a healthy weight. Avoid overfeeding your animal, and encourage physical activity to maintain strong muscles in the hips. You can put your cat's food on a counter or table to encourage them to climb. You may also use some gentle passive moving of the hip joint to help decrease muscle stiffness.
If your cat is showing pain when moving, your veterinarian may choose to prescribe anti-inflammatory medication to help minimize swelling. Pain medications can also be given to make your animal more comfortable. To help strengthen the connective tissue in the joint, your veterinarian may recommend the dietary supplements glucosamine and chondroitin.
In cases where cats are not responding to lifestyle changes and medication alone, surgery may be indicated. The two surgical options for adult cats with advanced hip dysplasia are a total hip replacement (THR) and an excision arthroplasty (EA). In the case of a THR, the hip joint is removed and replaced with an artificial ball and socket joint. Prognosis for most cats is good following a recovery period. With EA, the femoral head is removed, and nothing replaces it. The muscles in the hip will help the joint to function normally. As scar tissue builds in the area, there will no longer be bone-to-bone contact. Even if your cat has a slight limp due to the limb being a little shorter, there will be no pain. Following recovery, your cat should be able to engage in normal activity.
Recovery of Hip Dysplasia in Cats
Hip dysplasia is a degenerative disease, so non-surgical treatments will last the duration of your cat's life. You can expect regular check-ups and blood work to monitor the progress of the disease and response to medication. If your veterinarian decides surgery is needed, there will be a recovery period involving restricted exercise and follow-up appointments for a few months.
Hip Dysplasia Questions and Advice from Veterinary Professionals
Hi. My cat Ariel is a 14-1/2yo Purebred Persian that I have had since she was 3yo. Approx. 1-1/2 wks ago Ariel jumped up on her perch and held her left hind leg up high against her body and was crying loudly. A minute later she was using it again. I noticed this happening for about 5 days (it did not happen every time she jumped on something) and decided to go see the vet. They did a physical exam and flexion tests. The vet felt it may be a pinched nerve - maybe a sciatica issue. She prescribed us a pain med that goes along the cats gums and said to give it 4 or 5 days and see how it goes. She did offer to do xrays if I wanted that day, but we chose to wait and see if the meds helped. Meds started on Saturday morning and it is Wednesday morning & I do see some improvement - the strong crying is not there when she hurts it and she doesn't seem to hold it up as tight. It is getting a little bit better. I read that this breed is more prone to hip dysplasia and looked on youtube to see what I could find in a video. Nothing unfortunately. I was wondering if this sounds like hip issues? She is a petite thing, just under 6lbs. She is very active - still runs around with my 2 dogs. Any advice would be appreciated. Thank you.
Thank you Dr. Turner. We did have the Xrays done - there was a very slight change in the shape of her left hip bone joint. I forget the wording the dr used. The radiologist read it and felt that it was not significant enough to cause the pain and lameness Ariel was experiencing. He felt that it is probably a soft tissue injury. I was all ready to call and make the appt to have an unltrasound/mri done but I noticed Ariel was doing better. As of today, almost 3 weeks since it first occurred, Ariel is moving around fine again - jumping up and moving around comfortably. I have the pain meds if she should need them again, but right now she is not taking them. If it should reoccur I will have the mri done to see what is going on in that leg/spine area. Thank you again!
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My kitten was born without paw pads on one paw and his claws also don't retract on that paw. He's also missing some bones in that paw it seems underdeveloped. Other then that he's a happy playful cat but that leg (left front) is shorter due to missing pads and bones. He still uses the leg but sometimes I catch him keeping it up and running on just three legs. It seems to put his back out of place when he walks because it's shorter. Is there anything I can do to help him?
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I have a 10 year old male Russian blue. This morning I noticed his left hip was larger than the right. He is eating, drinking, as well as using rhe litter box normally. He does allow me touch the left hip and does not cry out in pain. I believe he is around 10LBS or more, previous history of urinary crystals, very picky eater will only eat 9lives plus care.
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My cat is limping on his left hind leg. He is an 8 year old stray rescue. He is a large cat (hence his name "Big Boy" since I found him when he was a baby. He is not obese by any means, but probably could lose a few pounds. Here is the problem: When he walks, it looks like the top of his hip is sticking out a little bit and his ankle is curling in. Sort of like walking bold legged. I've been reading about hip dysplasia in felines. Although limping, he is showing little signs of lameness. He still jumps up on the table to eat and occasionally runs through my apartment at high rates of speed. He is not showing the signs of dysplasia that I am reading about. He still has a monster appetite, is still jumping up and down on tables and does not shy away from me when I pet his hip area. I know only x-rays will show me exactly what is wrong with him. My problem is that he has never been to the vet before and it is EXTREMELY difficult trying to get him into a carry cage. I have a friend who has 8 cats. He advised against going to the vet and putting the cat on a homeopathic raw food diet, that I am currently reading about. I am also a little reluctant to bring him in, as I've had to put down 2 dogs shortly after taking them in to have surgeries that were probably unnecessary. I do not want to lose the trust of my cat or put any undue stress on him as I know just bringing him to a vet for blood work and x-rays would be a very traumatic experience for him. I am also reluctant to have surgery done because every pet that I've taken in for surgery was never the same afterward. I am looking for some guidance and advice as to what to do, with what I've mentioned about above. I know you're going to tell me to bring him into a professional vet for diagnosis and treatment. I was just wondering what else this could possibly be. Like stated earlier, the cat is still jumping, eating and running but has a noticeable limp that seems to have gotten a little worse these past few weeks. Any guidance, suggestions or advice would be greatly appreciated. Thank you very much.
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