Last Updated: 13/10/2025
Hip Dysplasia in Dogs
Has your dog been diagnosed with hip dysplasia? Find out all about what it is the causes treatment prognosis and prevention in our Vet guide.
Author: Dr Carla Paszkowski BVSc (Hons)
Reading Time: 8 minutes - short read
Has your dog been diagnosed with hip dysplasia? Or perhaps you are a prospective puppy owner researching your favourite dog breed, but have discovered they are a breed prone to hip dysplasia and want to equip yourself with some knowledge?
Our handy guide should provide you with everything you need to know about hip dysplasia in dogs.
What is hip dysplasia in dogs?
Canine Hip Dysplasia (CHD) is a congenital condition in which there is instability or a 'loose fit' of the hip joint. In a normal hip joint, the ball of the hip bone (femoral head) should sit neatly into the hip socket (acetabulum) like a ball and socket apparatus. The ball should fit so perfectly that it can glide smoothly around and turn in any direction without any 'clunky' movements. In hip dysplaisa, quite simply, the hip bone doesn't fit neatly into the hip socket like it should - usually due to the 'ball' having an abnormal shape, or the 'socket' being too shallow.
While this abnormal shape and laxity doesn't cause pain by itself, the continual abnormal movement of the femoral head against the bone of the acetabulum leads to a progressive loss of lubricating cartilage, development of scar tissue, and the formation of osteophytes (bone spurs) around the joint. This culmination of issues is a condition known as osteoarthritis, or arthritis. Thus, the painful symptoms of hip dysplasia are actually caused by the secondary arthritis (rather than the misshapen hip), which means that management of hip dysplasia is often aimed at simply treating the arthritis.
What causes hip dysplasia in dogs?
Hereditary (genetics) is the usual cause - the dog is born with the genes for developing abnormally shaped hip bones. This genetic trait is more common in certain breeds. However, rapid growth due to excessive nutritional intake can complicate the development of CHD. This is why it is so important to feed your large breed puppy a large breed puppy diet, rather than an all-breed diet, homemade or raw diet, which often aren't formulated with large breed puppies in mind.
Puppies with the genetic trait are usually born with normal hips, but changes begin within a few weeks of life. Sometimes, gait abnormalities begin as early as 3 months of age, but other times a dog may not show signs for years.
Did you know? Large breed puppies actually require controlled levels of nutrients while they're growing, as too much nutrition can make them grow too fast and cause bone deformities like hip dysplasia. Read more about the importance of large breed puppy diets.
Dog breeds that are prone to hip dysplasia
Large breed dogs are particularly prone to hip dysplasia. Certain breeds that are prone to being born with hip dysplasia include:
- Labrador and Golden Retrievers
- German Shepherd
- Rottweiler
- Saint Bernard
- Newfoundland
Signs and symptoms of canine hip dysplasia
Hip dysplasia is divided into two forms based on the age of onset of clinical signs: juvenile and mature. The juvenile form, as the name implies, is seen in dogs under 18 months of age. The mature form is seen in older dogs over 18 months of age.
Clinical signs of juvenile hip dysplasia are usually associated with structural and mechanical difficulties, as painful arthritis has not had time to develop yet:
- Bunny-hop gait
- Hind leg lameness (may affect one or both legs)
- Slow to rise from sitting or lying
- Clicking sound from hips when moving
- Reluctance to exercise for long periods
Clinical signs of mature hip dysplasia are usually associated with the secondary degenerative development of osteoarthritis:
- Lameness or limping which worsens after strenuous exercise
- Appearing stiff, especially after rest
- Slow to rise from sitting or lying
- Reluctance to use stairs or jump into the car
- Avoiding sitting or lying on hard surfaces
- Loss of muscle mass in the rear legs
Diagnosis of hip dysplasia in dogs
Diagnosis of hip dysplasia requires a veterinary examination. Your veterinarian will be able to watch your dog walking and observe for any abnormalities in their gate, physically examine your dog, test the range of their hip extension, and complete radiographs (xrays).
Radiographs are an essential part of the diagnosis of of hip dysplasia in dogs. Hip xrays usually require sedation to allow your vet to fully extend your dog's hips in a quick and painless way, so many dog owners choose to have diagnostic xrays done at the time as desexing. This means your dog will only need to be sedated once. However, there is also some evidence to suggest that desexing later in life may help the hips develop properly, so it's important to weigh up all your options.
Based on the radiographs, your veterinarian will be able to assess the depth of the acetabulum and the shape of the femoral head, and will form a grade of your dog's hips.
Treatment of hip dysplasia in dogs
Even though hip dysplasia is a degenerative condition, there are many ways to treat and manage it. Depending on the severity of the condition, the grade of the hip dysplasia, the age of the dog, and the lifestyle of the owner, your veterinarian may recommend surgical or medical management.
In either case, weight management is one of the single most important factors for dogs with hip dysplasia - no matter their age, severity, or treatment route. All dogs with hip dysplasia should be kept very slim. It is the most effective - and least expensive! - method of keeping your dog pain-free.
1. Surgery for Hip Dysplasia
Surgery is usually recommended for severe cases of hip dysplasia, particularly juvenile hip dysplasia. Other factors may influence the need for surgery including your dog's age, lifestyle and activity level.
Surgical procedures to correct hip dysplasias may include Juvenile Pubic Symphysiodesis (JPS), Double or Triple Pelvic Osteotomy (DPO/TPO), Femoral Head Osteotomy (FHO), or a Total Hip Replacement (THR).
A Juvenile Pubic Symphysiodesis (JPS) is a minimally invasive surgery that closes a growth plate at the bottom of the pelvis. It prevents the growth of the pubis and alters the shape of the pelvis, which increases the ball's coverage in the socket and reduces laxity. A JPS needs to be performed before the age of 18 weeks of age.
Double or Triple Pelvic Osteotomy (DPO/TPO) involves cutting the pelvic bone in two or three places and rotating the segments to reduce hip laxity and increase coverage of the ball in the socket. These procedures are best performed in juvenile dogs less than 8-10 months of age.
Femoral Head Osteotomy (FHO) is the surgical removal of the femoral head - aka, the cutting off of the 'ball'. By removing the ball, the cause of the dog's pain is removed and they will be less reliant on long term pain medication. Once the femoral head is removed, a false joint develops around the hip with the surrounding muscles and near-normal functionality eventually returns. A dog who has had an FHO must never be allowed to become overweight and will not be able to perform high level sporting activities. An FHO may be done at any age.
Total Hip Replacement (THR) is the most expensive surgical option, and is usually the main treatment in humans with hip dysplasia. A THR involves the replacement of both the ball and socket with metal and plastic implants. These components are fixed in place with bone cement, metal, or bone ingrowth methods. A THR should be performed when the dog has finished growing - which is usually over one year of age.
2. Medical Management of Hip Dysplasia
Medical management of hip dysplasia may be required in some cases - particularly with mature hip dysplasia, mild cases of juvenile hip dysplasia, or when surgery is not possible. Non-surgical management of hip dysplasia is all about reducing the development of osteoarthritis, and reducing the pain associated with it.
While it's nice to think that a single 'wonder arthritis medication' is effective at controlling pain long-term, in reality we need to combine techniques to be most effective. This multimodal approach should ideally involve a combination of pain relief medication, weight management, physiotherapy, environmental changes (like a supportive bed or access ramps) and the use of therapeutic diets or arthritis supplements. These are outlined below:
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History
Our experts continually monitor the health and wellness space and we update our articles when new information becomes available.
Mon Oct 13 2025
Edited by Dr Belinda Stancombe BVSc (Hons)Dr Belinda Stancombe BVSc (Hons)
Veterinarian
Dr Belinda graduated from The University of Queensland in 2009 and has worked as a Small Animal Veterinarian for over 10 years in South East Queensland. She also has experience as a telehealh consultant, providing veterinary advice for online customers.She has a special interest in animal behaviour, preventative health, the human-animal bond and internal medicine. Outside of work hours she is closely affiliated with a kitten rescue and is also a devoted carer of orphaned rescue kittens.
