Dog Wheelchair for Degenerative Myelopathy: Sizing and Support

If your dog's back legs are giving out and your vet has raised degenerative myelopathy, a rear support wheelchair can take the weight of the back end so your dog keeps walking, sniffing and going with you. It supports mobility, which is often the thing you can actually do something about today.

This page explains what is happening in the back legs, what a wheelchair does and does not do, and how to size one correctly.

What degenerative myelopathy does to the back legs

Canine degenerative myelopathy is a neurodegenerative disorder of the spinal cord, meaning nerve tissue there gradually breaks down,¹ and it is a hereditary disease with a progressive course, so it worsens over time.²

It is a late-onset disease, with signs usually appearing later in life at around 8 years of age.¹ In one study of 50 affected dogs the mean age at diagnosis was 9.1 years, and both sexes were affected equally.³

Degenerative myelopathy has been associated with mutations in the superoxide dismutase 1 gene, usually shortened to SOD1,⁴ and it is passed on in an autosomal recessive way, meaning a dog generally needs two copies of the faulty gene, one from each parent.⁵

In one Italian population, the SOD1 c.118G>A mutation was most frequent in Pembroke Welsh Corgis (55.49%) and least frequent in Poodles (6.32%) and Australian Shepherds (7.14%).¹ In a study of Uruguayan dogs, the frequency of the DM-related version of the gene was 0.16 in the Pit Bull Terrier and 0.52 in the Boxer.² Older work also found a significant breed predisposition for the German Shepherd Dog, Kuvasz, Hovawart, and Bernese Mountain Dog.³

In degenerative myelopathy, the back legs get used less and the muscles waste away, both from disuse and from nerve damage.⁶

If you are still working out what is going on, our plain English overview of why a dog's back legs get weak walks through the common causes and what separates a slow decline from an emergency.

Getting a diagnosis, and why it often sounds uncertain

Many owners are told "probably DM" and go home frustrated. There is a reason for that. Before death, a diagnosis of DM can only be presumptive, meaning a best-supported assumption rather than a confirmed answer, and there are no accepted guidelines for managing the condition.⁷ In a survey of specialists, most neurology respondents required genetic testing for the SOD1 mutation to reach that presumptive diagnosis.⁷ Overall, the majority of dogs diagnosed with DM have not had advanced scans, and the combination of history, neurological findings and genetic testing is heavily relied upon.⁷

Diagnosis is your vet's job, not ours. What is worth knowing is that DM is a slow, gradual change rather than a sudden event: in one review of dogs treated with rehabilitation and light therapy, the average time from the first signs to being unable to walk was about 9 months in one treatment group and about 32 months in the other, so the decline unfolds over many months.⁸

Ongoing care is usually shared. While the diagnosis of DM is frequently made by veterinary neurologists, continued care is often handled by rehabilitation professionals or primary veterinarians.⁷

What your vet may recommend alongside a wheelchair

Degenerative myelopathy is a fatal disease with no cure at present,⁹ and no specific treatment, with its causes mainly linked to the SOD1 gene mutation and the harm the faulty gene does.¹⁰ Research is ongoing, including early tests of a treatment delivered into the fluid around the spinal cord to lower SOD1 levels, but there is no cure available right now.⁹

In a survey of veterinary neurologists, nearly all respondents recommended exercise and physical rehabilitation for dogs with degenerative myelopathy.⁷ Rehabilitation respondents reported preserving or improving strength and coordination as their goals,⁷ using at-home exercises, underwater treadmill, gait training and strength building exercises to maintain strength, coordination and muscle mass and improve overall wellbeing.⁷ A review of the literature also supports the use of a physiotherapy approach in degenerative myelopathy,¹¹ and an earlier study reported that affected dogs which received physiotherapy remained able to walk longer than those that did not receive physical treatment.³

Obesity, sarcopenia (age-related muscle loss) and a sedentary lifestyle are a trifecta of age-related ill health common to both people and dogs, and healthy lifestyle choices including good nutrition and targeted exercise play key roles in reducing it.¹² If you are asking about a degenerative myelopathy dog diet, that is a conversation for your vet, who knows your dog's weight and other conditions.

Ask your vet what exercise is appropriate before you start anything new. A wheelchair is equipment, not therapy.

How a wheelchair helps with mobility

A rear support wheelchair does one job, and does it well: it carries the back half of your dog on wheels so the front end can do what it is still good at. That is the whole idea.

In practice, owners tell us it changes the shape of the day:

• Walks happen again, at your dog's pace, without you holding a towel sling and bending double.
• Your dog gets to be outside, upright and sniffing instead of watching from a bed.
• Your back and shoulders get a break, which matters if this is going to be a long road.

This is the piece that connects to everything above. Because mobility is linked to quality of life in aging dogs, a major goal in improving canine geriatric health is better functional movement.¹² A chair can keep your dog moving through the parts of the day that you both enjoy.

What to look for in the best wheelchairs for dogs with degenerative myelopathy

Not every cart suits a progressive condition. When people ask us about the best wheelchairs for dogs with degenerative myelopathy, these are the things worth checking:

• Weight carried through hips and chest, not the spine. A padded harness spreads the load instead of pressing on the back.
• Adjustability. Bodies change over months. A frame that adjusts in height, length and strap position keeps fitting.
• Back legs hanging free or lightly brushing the ground. Knuckling and scraped toes are a common worry, so the leg position needs to be set deliberately with your vet's input.
• Bathroom access. Your dog should be able to squat and toilet without coming out of the chair.
• Wheels that handle grass and gravel, not just smooth pavement.

Sizing: one measurement, not ten

Most wheelchair returns come from guessing. Our chair is sized by a single number: rear leg height, measured from the top of the hip straight down to the toe pad, with your dog lying on its side and the leg at its natural bend.

Five sizes (Mini, Small, Medium, Large and XL) cover rear leg heights from 3 to 31 inches, and each frame adjusts in height within its range.

Take two minutes with our step by step guide to measuring your dog, which includes a fit finder. If your dog will not lie still, or you are between sizes, email a photo and your measurement to help@oldpalpets.com and a person will answer.

The OldPal Rear Support Dog Wheelchair

One chair, built for dogs whose back legs are weak or failing.

• Padded harness carries weight through the hips and chest rather than the spine, and every strap adjusts.
• Lightweight aluminum frame with all-terrain wheels.
• Frame set so the back legs hang free or lightly brush the ground.
• Your dog can squat and go to the bathroom while in the chair.
• Five sizes, fitting rear leg heights from 3 to 31 inches.
• Fit Guarantee: if the size does not fit, send it back and we replace it with the size that does. Return shipping is the only cost.
• Most orders arrive within 2 to 3 weeks. Ships to the continental US only.

See the OldPal Rear Support Dog Wheelchair

Frequently asked questions

Related guides

• Weak, wobbly or dragging back legs: what it can mean
• Wheelchairs for dogs with IVDD
• Support for dogs with hip dysplasia and arthritis

Good days ahead.

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