IVDD Dog Life Expectancy: What Severity Says About Your Dog's Outlook

The disc problem affects the spinal cord, and depending on where along the spine it happens, it can affect the back legs: intervertebral disk disease (IVDD) in dogs is a neurologic condition in which the protective material around the spinal cord has undergone some kind of change, and the result can be pain, dysfunction, or paralysis.¹ What changes most for your dog is how he walks, how he toilets, and how much help he needs from you.

If you are new to all of this, start with our plain-English overview of what IVDD is and how it affects a dog, then come back here for the long view.

What life expectancy with degenerative disc disease really means

When owners ask about life expectancy with degenerative disc disease, what they are really asking is: will my dog walk again, and will he be comfortable? Those are the questions the veterinary sources answer, and the number that matters most is not years. The severity and type of disc injury can vary widely, ranging from mild discomfort to paralysis.² A dog at the mild end is typically treated with four weeks of strict cage rest and pain medication, and dogs with minimal or no neurologic problems and well-controlled pain have a fair to good outlook with this approach.³ A dog at the severe end may need long-term help, equipment and a changed routine.

What IVDD is, and the two types owners hear about

IVDD happens when the disc that sits between two vertebrae to cushion movement in the spine deteriorates and presses on the spinal cord.³ The disc has an outer part, called the annulus fibrosus, made up of strong fibers that connect the vertebrae, and an inner part, called the nucleus pulposus, which is gel-filled and acts as a shock absorber.³ Think of a jelly doughnut: a firm ring with soft filling.

There are two common patterns. In Type I, the soft inner filling bursts out through the outer ring, and dogs that have a long back and short legs are more at risk for this type.³ Type I IVDD is very common, especially among dachshunds, French bulldogs, beagles, and Shih Tzus.³ It often comes on suddenly, since this kind of burst disc material is a common cause of sudden loss of movement in dogs.⁴ Kari Foss, a veterinary neurologist at the University of Illinois Veterinary Teaching Hospital.³ Dachshunds may show signs by 3 to 6 years of age.³²

Type II is the bulging type, in which the fibrous outer layer gradually breaks down and the disc bulges out against the spinal cord, and it is more common in larger breeds.³ However, both types of IVDD result in the compression of the spinal cord and can occur in any dog.³ Large dogs like Labrador Retrievers, Doberman Pinschers, and German Shepherd Dogs are prone to a degenerative form of disk disease: the disks meant to cushion the spine become brittle with age, and little pieces can dry out and break off, causing damage to the spinal cord.¹

Where it happens matters too. About 65% of IVDD problems are associated with the thoracolumbar region of the spine (the mid to lower back), while about 18% are in the neck alone.²

How severe is it, and what that means for recovery

Vets assess IVDD dogs by how severe the signs are, especially whether the dog can still walk and still feel its feet, and that assessment shapes the outlook: dogs that can still feel their feet have a good chance of walking again with surgery, while dogs that are paralyzed and have lost that feeling rarely regain the ability to walk.³ Dogs with disc disease can show anything from mild neck or back discomfort to severe signs, including a wobbly gait, weakness in the rear, or full paralysis in which the dog cannot get up or use its rear legs at all.² As Dr. Foss puts it, "The signs vary based on which disc along the spine is affected and the severity of the spinal cord injury."³ Roughly, the steps run like this:

• Mild cases. These may be managed medically, at least initially, with restricted activity, pain medications and possibly muscle relaxants.²
• Wobbly but still walking. At times they may appear to walk with a wobbly gait, and it may appear that they are battling weakness in the rear.² Dogs that can still walk can be managed successfully with medical care, though the risk of it happening again deserves consideration.⁴
• Not able to walk, but still feels his toes. Dogs that cannot walk but still feel deep pressure in the toes can be managed medically, but success rates, speed of recovery and the chance of it happening again are all more likely to be improved with surgery, so surgery is recommended for these dogs.⁴
• Paralysed with no deep feeling in the toes. In paralysed dogs that can no longer feel deep pressure in the toes, success with medical management alone is largely poor, and surgery is recommended.⁴

In situations where a dog's condition is deteriorating or if they're no longer able to walk, the vet will do an assessment called deep pain, where they apply an unpleasant stimulus to the tip of the toe to see whether the dog can feel it.¹ Dogs that become paralyzed and have also lost that sensation are considered an emergency, and the chances for the ability to walk again are very low, even with surgery.³ Even then, time already lost is not automatically the end of the story: dogs that cannot feel deep pain and have been paralyzed more than a week before surgery have been recorded regaining the ability to walk.⁴

How fast it moves, and the signs that mean go now

One moment your dog can be playing and jumping, and then they may suddenly cry out in pain; the force of the movement can damage a disk, resulting in acute pain and pressure on the spinal cord.¹ In other cases, dogs can wake up one day in pain without any obvious signs of injury.¹

Call your vet, or an emergency clinic out of hours, if you see:

• "The symptom that is an absolute emergency is if the dog is unable to walk."¹
• Dragging of the back feet or a drunk-looking walk. Dogs with IVDD may exhibit a variety of symptoms, including limping, dragging their legs, or hunching their back.¹
• Trouble toileting. Pressure on the spinal cord can make it difficult for dogs to urinate or have a bowel movement.¹
• A snap or growl from a normally gentle dog. Dogs with back problems can be in severe pain, so it's important to be patient when their discomfort manifests in behavioral changes: even a sweet dog may snap or growl.²

Waiting costs recovery. The sooner the vet examines your dog and administers treatment, the better your dog's chances of recovery.¹

Crate rest or surgery: what each path means

Both medical and surgical management can restore walking, and the choice depends on how severe the injury is: dogs that can still walk can often be managed successfully with medical care, while surgery is recommended for dogs that cannot walk, including those that have lost deep pain sensation.⁴ Medical management consists of very strict movement restrictions for four weeks, combined with medication, and is often recommended for dogs with a first episode of back pain or mild signs: "Basically the patient is on full cage rest, and only taken outside, on a leash, for elimination purposes."³ The goal of the activity restriction is to allow the disc time to heal.³

What "restricted" means in practice: confinement to a restricted area (crate ideally, or a small room without furniture) except for rehabilitation exercises or outdoor toileting, with no off-leash walking, no jumping on or off furniture and no access to stairs during this time.⁴

Surgery is for the more severe end. Surgery takes the pressure off the spinal cord by removing the herniated disc material, after which the dog must be confined to cage rest for four to six weeks to prevent further injury.³ If surgery is recommended, don't wait: the longer you wait, the greater the chance the spinal cord will degenerate to the point where it might not recover.² Be ready for a long tail on this. Recovery can take months.² Our guide to what the weeks after an IVDD episode look like walks through that stage in detail.

Rehab, hydrotherapy and what they add

A basic rehabilitation plan can include cold packs, gently flexing and extending the legs for him, massage, and assisted standing and walking, none of which need specialist equipment or training.⁴ Rehab after surgery usually starts somewhere between one day and two weeks afterwards and continues for at least two to six weeks.⁴

Hydrotherapy usually means an underwater treadmill: a belt in a tank that fills with warm water so the water carries some of the dog's weight while the legs move. In one study, dogs had supervised underwater treadmill therapy while a matched group did owner-guided exercises at home.⁵ The treadmill group reached independent walking sooner (7 to 35 days) than the control group (14 to 42 days).⁵ Ask your vet whether a certified rehab practice near you takes referrals, and what your dog needs to be able to do before starting.

Will it come back?

With IVDD, catching it early can help avoid a recurrence.¹ When planning sensible activities to protect your dog's back, keep in mind that walking is a safe choice for any dog, while leaping after a thrown toy is not.² "We really can't prevent degeneration of an intervertebral disc, but we try to discourage pets at risk from jumping on and off furniture and engaging in any other high-impact activities."³

The practical version at home: rugs or yoga mats over slick floors, a ramp or low step at the sofa and the car, a flat harness for walks instead of pulling on a neck collar, nails kept short so the back feet grip, and short, frequent lead walks instead of one long one.

Living well if the back legs stay weak

If your pet is paralyzed in only the hind limbs, they may develop skin sores from dragging their hind end as they move, so a sling, harness, or wheelchair can help, and their movement without that support should be limited.⁶

The daily jobs are these:

• Bladder. Some paralyzed pets have normal bladder control, but many will not be able to urinate properly, especially shortly after a spinal injury.⁶ The longer urine sits in the bladder, the higher the risk of bladder infection, so you should aim to empty the bladder at least three to four times daily.⁶ Your veterinary team can help demonstrate this process.⁶ If this is where you are now, see our guide on a dog who isn't passing urine.
• Skin. Pressure sores develop over bony points where there is less padding and more contact with a surface, and combining a soft mattress with regular position changes and gentle leg movements can reduce their occurrence.⁶ It is essential to check them every few hours and wash them with a gentle soap-free shampoo.⁶
• Bed. Soft, thick bedding reduces the risk of pressure sores, and memory foam beds or egg crate mattresses are a good option when covered by blankets that can be changed regularly.⁶
• Movement and mood. A home exercise plan developed by a veterinary rehabilitation therapist offers pain relief, muscle relaxation, increased blood flow to the paralyzed limbs and mental stimulation, and exercises are designed to help minimize muscle loss and increase core strength, which can help them improve their mobility.⁶

A cart fits into that last line. If the dog's front limbs are strong enough, the vet may recommend a mobility device (like a cart) to help your dog get around.¹ The OldPal Rear Support Dog Wheelchair is built for exactly this dog: the padded harness carries weight through the hips and chest rather than the spine, the frame is set so the back legs hang free or lightly brush the ground, and dogs can squat and toilet while they are in it. It comes in five sizes covering rear leg heights from 3 to 27 inches, and it is sized on one measurement: rear leg height, from the top of the hip straight down to the toe pad, with your dog lying on his side and the leg at its natural bend. Take that measurement with our size guide and fit finder, or email a photo and the number to help@oldpalpets.com and a person will check it for you. Ask your vet first whether your dog's front end and core are ready for cart time.

What actually shortens life in a dog with IVDD

Even if a dog is no longer in pain, being paralyzed can set off a lot of medical issues and complications.¹ The main ones to stay ahead of:

• Urinary infection. Dogs that can't empty their bladder properly can suffer from urine building up in the bladder and urinary tract infections.¹ Your veterinarian may recommend regular urine testing to check for infection.⁶
• Skin infection from soiling and dragging. Paralyzed dogs are often incontinent, and urine and feces sitting against the skin cause uncomfortable sores, so they must be checked and washed with a gentle soap-free shampoo every few hours.⁶
• Being overweight. If dogs with long bodies and short legs are overweight, they may be at elevated risk for developing IVDD in the mid to lower back because of the added pressure on the spine.¹ Maintaining a good body condition can be vital for the best recovery.⁶

If you want the fuller picture of the complications that can turn serious, we cover them in a separate guide. Anything beyond that is a conversation for you and your vet.

Is it IVDD, or something else?

Not every weak back end is a disc. Other spinal cord diseases may need to be ruled out before it is diagnosed.⁷ Gradual hind limb weakness and loss of coordination is the classic picture, and it typically begins in one back leg and progresses to both.⁷ We cover its timeline in our guide to degenerative myelopathy and what to expect. During diagnostics, your veterinarian will also be able to tell if the problem is due to disc degeneration or another issue, such as a cancerous growth.²

What a realistic long-term routine looks like

Weeks one to six are the quiet ones: confinement, lead-only toilet trips, gentle home exercises, and a notebook. Write down what the back legs did each day, how he toileted, and anything that looked different. Owners spot plateaus and improvements far better from notes than from memory.

After that, if your vet clears a cart, build up slowly: ten or fifteen minutes on flat ground at first, two or three times a day, then longer as the front end and core get stronger. Keep the first sessions somewhere familiar and boring. Out of the cart, he still needs supervised, supported movement and his position changed regularly.

Signs things are heading the right way week to week: more weight-bearing seconds before the back end sinks, toes placed rather than dragged, a stronger push-off, easier toileting, and more interest in going out. Slower days happen. The trend over a fortnight tells you more than any single afternoon.

Frequently asked questions

Related guides

• IVDD in dogs: the full overview
• Choosing a wheelchair for a dog with IVDD
• Best sleeping position for a dog with IVDD
• Choosing an orthopedic bed for an IVDD dog
• Can IVDD dogs run?

Sources

Related guides

• Dog Spinal Problems: Causes of Weak Back Legs and What Helps
• Spinal Injuries in Dogs: Signs, Emergency Care and Recovery Odds
• Spinal Stroke in Dogs (FCE): Signs, Emergency Steps and Recovery
• Signs of IVDD in Dogs: What to Watch For and When It Is an Emergency