The phrase "intervertebral disk" refers to a cushion-like structure found between the bones of the spine, called vertebrae. These disks act as shock absorbers, allowing the spine to bend, twist, and absorb impact. Full definition
Identifying the symptoms and signs of Intervertebral Disk Disease in dogs is the first step to knowing if your dog requires medical attention. (petwave.com)
The long spinal column often results in intervertebral disk disease. (dogbreedanswers.com)
I would think more it is to do with intervertebral disk disease which is causing pressure on the spine leading to hind limb weakness. (wagwalking.com)