Hip dysplasia is a condition that can cause worry for pet parents. Here is what you need to know to help your dog live a happy and healthy life -- including symptoms, treatment, prevention, and more.
Hip dysplasia is an issue that typically affects larger dog breeds (over 50 pounds), although it can happen to dogs of any size. Dog breeds most affected by this include:
Hip dysplasia, which was first described in 1935, is the abnormal development of the coxofemoral joint (or hip), which is also called the ball and socket joint.
The "ball" of this joint is the top of the femur and the "socket" is the acetabulum. Hip dysplasia causes these to grow at different rates, rubbing together and resulting in the looseness (laxity) of joints and dislocation (where the ball and socket don't fit together normally).
Hip dysplasia is typically not diagnosed until dogs are older, and may also be accompanied by lameness, muscle atrophy, or osteoarthritis, a long-term degenerative joint disease that is caused by cartilage worn away by abnormal movement and leads to scar tissue formation and bone spurs.
Dogs with hip dysplasia can have varying degrees of the condition: they may have wear-and-tear that causes them pain and discomfort or even serious difficulty with mobility. However, while the condition is chronic, dogs can still live a long life, even if they have limited mobility and discomfort.
While the exact cause of hip dysplasia is not known, it's generally assumed to be a genetic condition. However, other factors -- such as diet, insufficient exercise, growth rate, muscle mass, hormones, and environmental factors -- can also contribute to the condition. Weight gain and obesity are two of the most common factors since both of these cause strain on a dog's joints, but pelvic muscle mass also plays a role.
Puppies may be born with a genetic predisposition to hip dysplasia, even if they are born with normal hips. As they age, they may end up developing lameness or abnormalities in their gait. Some of these issues can begin when dogs are as young as 3 months (juvenile hip dysplasia, which affects dogs under 18 months of age), while others may not have visible symptoms for years (mature hip dysplasia).
There are several visible symptoms of hip dysplasia that can be spotted in dogs. In juveniles, this includes:
In mature forms, these symptoms include:
In many cases, dogs may not show visible symptoms of hip dysplasia until they are older and have lived with it for years. You may not even notice any symptoms until they begin to limp.
It's also possible for younger dogs to show symptoms and then improve once the body produces fibrous tissue to stabilize loose joints.
Unfortunately, hip dysplasia is painful for dogs, so it's important to keep an eye out for any changes, especially if they are a breed prone to these conditions.
If you notice any symptoms of hip dysplasia, you should make an appointment with your veterinarian as soon as possible for a possible diagnosis.
Your veterinarian will determine whether your dog has hip dysplasia by going over some important information, such as your dog's history, any injuries (current or previous), exercise and activity regimen, and diet. They may perform a physical and check your dog's hips and legs for the range of motion, discomfort, joint laxity, or a clicking or grinding sound coming from their joints.
In some cases, veterinarians may even take blood tests to check for inflammation due to joint disease (which can be found through a blood count) and X-rays of your dog to help make a definitive diagnosis.
Some screening methods that look for signs of hip dysplasia include the Orthopedic Foundation for Animals (OFA) protocol, which can be performed on dogs as young as four months of age and typically doesn't require sedation, and the PennHIP protocol, which requires a dog to be at least two years of age at requires sedation.
These methods can even help determine the probability of degenerative joint disease later in life. However, the accuracy of these tests are not completely accurate: OFA certification is one of the most commonly used tests to determine hip dysplasia and doesn't guarantee that a dog (or their offspring) won't develop osteoarthritis in the future; PennHIP, on the other hand, is typically more accurate when predicting whether or not osteoarthritis will eventually develop.
PennHIP evaluations are usually more expensive than OFA certifications, and the cost of both of these can add up over time. Pet insurance can help you cover some or all of the costs of evaluation, treatment, and even surgery (more on that below).
While many dogs may be able to deal with hip dysplasia on their own (and with the support of their owners), around 30% will need treatment later in their life.
There is no cure for hip dysplasia, but treatment and supportive care can help your dog live a long, happy, and comfortable life.
Treatment depends on the severity of the condition, symptoms, and level of discomfort. Veterinarians may prescribe corticosteroids or non-steroidal anti-inflammatory drugs (NSAIDs) such as meloxicam. However, the medications provided may vary based on individual needs and your dog may need to try a few before finding the most effective one. Make sure you monitor your dog closely for any side effects.
Analgesics may also be prescribed for additional relief and even for symptoms of osteoarthritis: these include gabapentin, tramadol, and codeine.
Your veterinary may also recommend supplements to help with your dog's hips and joints, such as glucosamine, chondroitin sulfate, methylsulfonylmethane, and omega-3 fatty acid nutritional supplements that can manage cartilage breakdown in joints. Dogs may also receive routine polysulfated glycosaminoglycan injections.
Lifestyle changes can also help your dog. A healthy diet and weight loss (if they are overweight) can help take the strain off hip joints, and treatment regimens should include moderate daily exercise and low-impact activities to help strengthen the muscles. Consider taking your dog for swims since it is gentle on their joints.
In a severe case of hip dysplasia, after all other options have been retired, dogs may need surgery. While this is usually a last-case scenario, it can give dogs a chance to return to their normal functioning self. Common surgical procedures include:
The type of surgery recommended is determined by your dog's lifestyle, age, and the severity of the condition. Your veterinarian may recommend physical therapy after surgery to help them heal and gain full mobility faster. Applying a warm compress or gently massaging your dog's hips in a circular motion for 10-15 minutes a day can be beneficial, as long as it's not painful to them.
If your dog isn't able to get surgery, needs additional support post-surgery, or needs it to manage their pain, they may be able to use hip braces to provide stability and support for their joints. These come in a variety of sizes so you can easily find one that works best for your pet.
You can also take some simple steps to make your dog feel more comfortable at home:
Preventing hip dysplasia is difficult since the main factor that contributes to it is genetics. However, there are steps that you can take to help reduce the chance of your dog developing hip dysplasia, and many of these are similar to treatment:
Even if your dog has been diagnosed with hip dysplasia, they can still love a long and comfortable life, although you may need to provide some support as they age.
Two common treatments for hip dysplasia include a total hip replacement and femoral head ostectomy (FHO). However, there are other less common procedures such as DARthroplasty, juvenile pubic symphysiodesis, and triple pelvic osteotomy.