Newsletter: Spring 09

Lameness in middle-aged dogs

Cranial cruciate disease may be affecting your dog.

By far the most common Orthopaedic Surgery we do in the Annandale Vet Hospital is cranial cruciate surgery for dogs.

What is cranial cruciate disease?

Exactly the same as in a human’s knee, the cruciate ligament in the dog’s stifle (knee) keeps the joint stable; if this ligament is damaged and tears completely the knee can slide backwards and forward. Damage occurs over a period of time, gradually getting worse until the ligament finally gives out.

Is your dog affected?

Dogs suffering from Cranial Cruciate Disease can show varying clinical signs. Some dogs may be suddenly unable to use the hind leg at all after a run in the park. Other less acutely affected dogs may seem fine on that leg most of the time, but then have to lift it when exercising. These dogs often lift their foot off the ground at rest. When sitting, all affected dogs tend to sit with the damaged leg sticking out. 

Diagnosis …

Vets can usually diagnose the disease by close examination and palpation of the joint. However, x rays and examination under anaesthetic are needed to confirm the diagnosis and rule out other causes of joint instability.

Treatment …

Treatment is nearly always by surgery. If a dog is very small, sometimes rest and anti-inflammatory drugs may lead to recovery. Surgery is designed to stabilise the joint by changing the way the bones come together to reduce the movement that occurs after the ligament has ruptured. Recovery after surgery is slow and can be assisted by medication for pain and to assist with joint repair. Regular physiotherapy and swimming can also help.