
Here, we’ll take a closer look at the reasons why a dog may start limping on its back leg or showing weakness on its back limbs. We’ll also detail some of the common symptoms of back leg weakness — and explain what your next steps are to try to resolve the problem.
- Lameness
- Limping
- Loss of balance
- Instability
- Wobbly or staggering when walking
- Difficulty walking or standing up
- Abnormal or slow gait
- Reluctance to move, jump or be active
- Showing signs of pain
- Partial or even complete paralysis
- Incontinence – or loss of ability to urinate
- Swelling
- Licking of joints
- Weight gain
- Loss of muscle mass
- Lethargy
- Collapse
If your pup is displaying one or more of these symptoms, it may be an indicator of your dog’s back legs not working as well as they should. Watch them closely over the next few days and if they continue to show symptoms, contact your vet. It may not be a serious issue — but there’s a chance it’s indicative of a problem that will require treatment.
A dog with weakness in its back legs could be living with any of several different conditions, so you should never diagnose issues yourself and attempt to guess that the problem is. Always consult your veterinarian.
- Degenerative Myelopathy (DM)
- Hip Dysplasia
- Lumbosacral stenosis
- Intervertebral disc disease
- Arthritis
- Osteosarcoma
- Injury or trauma
Degenerative Myelopathy (DM)
It progresses slowly and develops into back leg weakness; a dog with DM may start to stumble as its hind legs gradually fail. There’s no cure, though therapy and supplements can help with pain management and to maintain quality of life as much as possible.
This loose joint movement can cause a dog to have difficulty getting up, climbing stairs, and make its hind limbs lame. Physiotherapy and Non-steroidal anti-inflammatory drugs (NSAIDS) can form part of a treatment plan, as can surgery. Weight management helps, too — overweight dogs are more at risk of hip dysplasia.
Anti-inflammatories can be prescribed as treatment, as well as reduced exercise (on leash walking) and even surgery, in some cases. It often develops in large dog breeds.
Arthritis can be a cause of a dog’s back legs not working. Your veterinarian should diagnose arthritis, which can’t be cured but can be managed with NSAIDS, physiotherapy and potentially a revised diet to keep weight down.
Though many dogs won’t ‘make a fuss’, others will be in clear and obvious pain with any of these injuries. A dog certainly won’t walk normally with injuries this serious. The first step is to contact your vet immediately. Treatment almost always means surgery.
Your vet will thoroughly check your dog over. You’ll be asked if there have been any changes in behavior, including changes to your pet’s appetite, and if your dog has been exposed to any possible toxins. You’ll also be asked how long your dog has shown symptoms, and if he or she has been involved in any potential incidents while exercising. So, be prepared to share as much information as you can.
It’s likely that, because of some of the possible causes of a dog’s back legs not working correctly, your vet will also use X-rays, MRIs, CT scans or ultrasounds to examine bones, joints and tissues, looking for any indication of damage in the legs, spinal cord, hips and other areas.
Some conditions will need surgery. Others, such as Degenerative Myelopathy, Lumbosacral stenosis and Intervertebral disc disease, might need anti-inflammatory medication and managed over a period of time. In some cases, physiotherapy could be recommended, to help restore some flexibility and movement to a dog’s weak back legs.
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Other causes of a dog’s back legs not working might be more difficult to recover from. In the most severe of cases, intervertebral disc disease can lead to paralysis, while osteosarcoma can ultimately be fatal.
Be sure to discuss all treatment options with your vet, and check in regularly during the recovery process.
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