Overview

Disc replacement surgery, or artificial disc replacement, is a spinal procedure in which a damaged intervertebral disc is removed and replaced with a synthetic disc designed to maintain that level of the spine's mobility. The intervertebral discs are like cushions between the vertebrae. They let the spine move and absorb shock. If a disc becomes severely damaged, it can cause long-term back or neck pain and pressure on the nerves. Disc replacement maintains motion at the level treated, unlike spinal fusion, which permanently joins two vertebrae. The cervical (neck) or lumbar (lower back) spine is where it is most often done. The goal is to ease pain while maintaining spine flexibility.

Why It’s Done
When medications, physical therapy, or injections don't help with chronic neck or back pain caused by degenerative disc disease, doctors may do disc replacement surgery. People with disc damage at one or two levels and not much spinal instability are thought to be good candidates for this. The goal is to remove the painful disc, relieve any nerve pressure, and keep the spine moving naturally. This may put less stress on nearby levels than fusion surgery.

What to Expect
Before the surgery, MRI, CT scans, and X-rays are done to make sure that the discs have degenerated and to check the alignment of the spine. A full medical exam is conducted to determine your eligibility. General anaesthesia is given during the procedure. An incision is made in the front of the neck for cervical disc replacement, but lumbar procedures usually start from the abdomen. The damaged disc is carefully taken out, and the artificial disc implant is put in between the vertebrae. The implant is made to let you move and stay stable in a controlled way. After placement, alignment is checked to make sure it is correct before the incision is closed. After surgery, patients are monitored in recovery and may need to stay in the hospital for 1 or 2 days. It is important to manage pain and start moving around gently as soon as possible. To strengthen the muscles that support the body, physical therapy may be recommended.

Recovery & Outlook
The time it takes to recover depends on the level of the spine that was treated. Many patients go back to light activities in a few weeks. It is normal to feel some pain at the incision site at first. Disc replacement usually lets you get back to moving around faster than fusion does. When chosen correctly, patients experience much less pain, and their spinal motion remains unchanged. Long-term results are usually good, with better function and less stress on nearby segments. Regular follow-up keeps the implant stable and the spine healthy.