IVDD and spinal surgery in dogs: the decision where hours matter

A dachshund that screams when picked up, a back that has gone wobbly overnight, a vet saying the word MRI and a number with five digits. IVDD decisions arrive fast and expensively. Here is the honest map of the territory, including the one question that changes everything: can your dog still feel its toes?

EMReviewed by Eben Martin, Veterinary Surgeon · Updated August 2026
Cost in Australia
$5,000 to $15,000
Surgery plus MRI and hospital care at referral centres
The key question
Deep pain
Dogs that can still feel their toes do far better
Time factor
Hours matter
In paralysed dogs, speed to surgery affects outcome

In this guide

What IVDD actually is

Discs are the cushions between the bones of the spine. In predisposed breeds, dachshunds above all but also frenchies, beagles, corgis, shih tzus and others, disc material can harden and then burst upward into the spinal cord, anywhere from a painful bulge to a full extrusion that crushes the cord. That is why IVDD presents as everything from a reluctant jumper to a dog dragging both back legs.

How surgeons grade it, simply

Think of five steps: pain only; walking but wobbly; able to move the legs but not walk; not moving the legs but still feeling deep pain; and no deep pain. Management stiffens as you go down the list. Pain only cases often do well with strict crate rest and medication. Dogs that cannot walk are surgical candidates. Dogs that have lost deep pain sensation are emergencies where hours genuinely matter, because the odds of walking again fall the longer the cord stays compressed.

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Common questions

Is crate rest alone really an option?

For pain only and mildly wobbly dogs, yes, genuinely: several weeks of proper confinement with medication gives many of these dogs a good recovery. The catch is the word proper. A crate, not a room; carried out to toilet; no exceptions. And a clear plan for what triggers escalation to imaging.

Why does the MRI cost so much?

Veterinary MRI means a general anaesthetic, specialist radiology and machine time, commonly $4,000 or more on its own at referral centres. It is also the map the surgeon operates from: for spinal surgery there is no responsible way to cut without it.

My dog lost deep pain two days ago. Too late?

The odds worsen significantly, but they are not zero: some dogs operated on after deep pain loss still walk again. This is a same day specialist conversation, not one to settle over the phone or by web article, and honest centres will talk frankly about the odds and the cost.

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