Elbow dysplasia

Symptoms an owner can spot at home

• Stiffness after rest that eases with movement, most obvious first thing in the morning
• A short, choppy front stride, or elbows carried slightly away from the body
• Reluctance on stairs and unwillingness to jump down, appearing between five and twelve months
• Lameness after exercise rather than during it
• Sitting down on walks, or a young dog described as lazy or unenthusiastic
• Reduced muscle over the shoulders as the dog offloads the front end

When to see a vet

• Any lameness in a growing large breed dog lasting more than a few days
• A puppy who tires quickly, sits down on walks, or moves oddly at the front, even without an obvious limp
• Sudden non-weight-bearing lameness, which needs same-day attention to rule out a fracture or other acute injury
• A joint that is hot, swollen or painful to touch, alongside fever or lethargy
• Before buying a puppy of an at-risk breed, ask about the parents' elbow grading

What it is

The elbow is formed by three bones meeting precisely. In elbow dysplasia they fail to develop in perfect alignment, so load concentrates on small areas of cartilage rather than spreading evenly. Several distinct lesions arise from that mismatch, and more than one can be present in the same joint.

• Fragmented medial coronoid process, in which a piece of the ulna's inner rim cracks away under uneven load. The most common form.
• Osteochondritis dissecans, in which a flap of cartilage separates from the bone beneath.
• Ununited anconeal process, in which a growth centre fails to fuse to the ulna.
• Elbow incongruity, where the joint surfaces do not meet evenly, which drives the others.

Signs typically appear before a dog is a year old, though some dogs are not presented until middle age when accumulated arthritis finally becomes obvious. It occurs primarily in medium and large breeds and is heritable, which is why registries grade elbows alongside hips.

Why owners miss it

A dog sore on one leg limps, which is unmistakable. A dog sore on both front legs simply moves differently: shorter strides, more time lying down, less enthusiasm for stairs. Owners reasonably read that as personality, and vets hear about it months later. If a large breed puppy seems unusually reluctant to exercise, that is worth a gait assessment rather than a shrug.

How vets diagnose it

Diagnosis combines a clinical examination, where pain on flexing and extending the elbow is telling, with imaging. Plain radiographs may show arthritis but often miss early lesions, so CT or arthroscopy is frequently needed to see what is actually happening inside the joint. A referral is normal here and does not mean anything has gone wrong.

Treatment and long-term management

Elbow dysplasia cannot be cured, but published outcomes are reasonably encouraging: with treatment the majority of cases show meaningful improvement in comfort and lameness, even as arthritis continues to progress on radiographs. Earlier and milder disease does better. Surgery addresses specific lesions and forms one part of a long-term plan rather than an endpoint.

• Weight control does more than any product. Every extra pound loads a joint that already concentrates load badly.
• Consistent, controlled exercise beats weekend bursts. Lead walks and swimming maintain muscle without impact.
• Traction underfoot at home. Rugs and runners on hard floors stop the scrabbling that loads the front legs sharply.
• A supportive orthopaedic bed thick enough that the elbow does not press through to the floor.
• Veterinary pain management, reviewed regularly. This is a clinical decision and not something to substitute with supplements.
• Avoid overfeeding for fast growth in at-risk puppies, and limit repetitive high-impact exercise while joints are developing.