Hip Dysplasia in Dogs: Symptoms, Diagnosis and Treatment
Hip dysplasia (HD) is one of the most common skeletal conditions in dogs — particularly in large and giant breeds. It's a developmental problem where the hip joint doesn't form properly, leading to instability, cartilage wear, and eventually arthritis. Understanding it early gives you the best chance of managing it well.
What Is Hip Dysplasia?
In a healthy hip, the ball (femoral head) fits snugly into the socket (acetabulum). In hip dysplasia, the socket is too shallow or the joint is too loose. The ball rubs and grinds rather than gliding smoothly, causing inflammation and progressive joint damage.
Breeds Most Commonly Affected
Large and giant breeds carry the highest risk, but HD can occur in any breed:
- German Shepherd Dog
- Labrador Retriever
- Golden Retriever
- Rottweiler
- Saint Bernard
- Bulldog (severe in this breed)
- Newfoundland
Symptoms
HD can present at any age. In young dogs (4–18 months), it's the laxity and pain. In older dogs, it's the resulting arthritis.
- Hind leg lameness, often bilateral (both sides)
- Bunny-hopping gait when running (both hind legs move together)
- Reluctance to exercise, run or climb stairs
- Stiffness after rest, loosening up with movement
- Loss of muscle mass in the hind quarters
- Swaying, wide-based hindlimb stance
- Pain or reluctance when the hip is extended
Diagnosis
X-rays are the primary diagnostic tool. The vet assesses the degree of joint laxity, socket depth, and secondary arthritic changes. Sedation or general anaesthesia is needed for proper positioning.
Formal scoring systems (BVA/KC hip score in the UK, OFA in the USA, OFFA/FCI in Europe) allow breeders to select against HD. A total score of 0 is normal; higher scores indicate more severe dysplasia.
Treatment
Management depends on age, severity and the dog's lifestyle.
Conservative Management (Mild to Moderate)
- Weight management: The single most impactful intervention. Every extra kilogram adds significant stress to the joint.
- Controlled exercise: Regular, moderate activity (swimming is excellent — full muscle work, minimal joint load).
- NSAIDs: Meloxicam, carprofen, grapiprant — effective pain control with regular bloodwork monitoring.
- Joint supplements: Omega-3 fatty acids (EPA/DHA) have the best evidence; green-lipped mussel and glucosamine are commonly used.
- Physiotherapy and hydrotherapy: Builds muscle to support the joint.
Surgical Options
- Juvenile Pubic Symphysiodesis (JPS): Performed in puppies under 20 weeks. Alters pelvis development to improve socket depth. Window is narrow — early screening matters.
- Triple Pelvic Osteotomy (TPO): Rotates the socket to improve coverage. Best in young dogs with laxity but no significant arthritis.
- Femoral Head and Neck Excision (FHO): Removes the ball entirely; the body forms a fibrous pseudojoint. Works well in dogs under ~20kg.
- Total Hip Replacement (THR): The closest thing to a cure — replaces the entire joint with metal and polyethylene components. Excellent outcomes, high cost (~£3,000–£6,000 per hip in the UK).
Living with a Dog with Hip Dysplasia
- Orthopedic memory foam bed — avoids hard floor pressure
- Non-slip mats on tiles and wood floors
- Ramp for car, sofa or bed access
- Raised food bowls if bending is painful
Log pain events, exercise tolerance and any new symptoms in Purzi — tracking trends over time helps your vet adjust the management plan at each visit.