What it is
In a growing puppy, the ends of the bones are capped with cartilage that slowly turns into bone from below. In osteochondritis dissecans this change stalls in a small area, so the cartilage stays thick and poorly nourished. Under everyday loads it can crack and lift into a flap that rubs inside the joint. The shoulder, elbow, knee or hock can be affected, sometimes on both sides.
The condition is linked to fast growth in large and giant dogs, and inherited factors play a part. The signs appear during growth, before the puppy is fully grown.
While your dog is growing, steady exercise suits the joints better than long runs, repeated jumping or rough play on hard ground. If a joint is affected, your vet will advise how much activity is right. Over the years, keeping your dog lean takes load off the joint.
Signs you may notice
- Limping on one or more legs
- Stiff after rest or play
- Reluctant to run or jump
- Slightly swollen joint
- Pain when a joint is touched
You may notice a young dog limping on one or more legs, especially after waking up or after energetic play, and being reluctant to run or jump. The joint may look slightly swollen and be painful to the touch.
When to see a vet
Book a visit if a young dog limps for more than a day or two, or keeps going stiff after rest or play. Sudden severe lameness, or a leg your dog will not put down, should be seen by a vet the same day.
This is general information, not veterinary advice. For your own dog's health, tests and treatment, see a vet.