Disc replacement may help relieve pain from a damaged disc while preserving movement in your spine. That possibility can be encouraging when other treatments have not helped, but how do you know whether you qualify?
Determining who is a candidate for artificial disc replacement requires looking at both the damaged disc and the surrounding spine. Your bone strength, joint health, and spinal stability all help determine whether the procedure is appropriate for you.
At Saadat Spine, Dr. Ehsan Saadat is a board-certified, Harvard- and Emory-trained orthopedic spine surgeon whose areas of focus include disc replacement and other motion-preserving procedures. We evaluate your spinal condition, overall health, and activity level to explain whether disc replacement fits your needs or another treatment would be more appropriate.
What Is ADR Surgery?
Artificial disc replacement (ADR) is an operation that replaces a damaged spinal disc with an artificial one. Your spine is made up of bones called vertebrae, with discs between them that act as cushions and help you bend and twist. When a disc wears down or becomes damaged, it can cause pain or press on nearby nerves.
During the procedure, your surgeon removes the damaged disc and places an artificial disc in the space between the vertebrae. The goal is to relieve symptoms caused by the damaged disc while preserving movement in that part of your spine.
Disc replacement can treat certain problems in either the neck or lower back. In the neck, cervical disc replacement may relieve pressure that a worn or herniated disc places on a nerve or the spinal cord. In the lower back, lumbar disc replacement generally treats persistent back pain caused by a worn-down disc. Both procedures preserve motion, but the condition causing your symptoms helps determine whether replacement is appropriate.
Who Is a Good Candidate for Disc Replacement?
Adults with persistent disc-related symptoms may qualify when the surrounding bones and joints can support a moving implant. To determine who is a candidate for artificial disc replacement, we match your symptoms with your examination and imaging findings.
Symptoms That Persist Despite Nonsurgical Treatment
Disc replacement is usually considered when physical therapy, medications, or other appropriate nonsurgical care have not provided enough relief. For some FDA-approved lumbar artificial discs, the indications require symptoms to persist despite at least six months of conservative treatment. The exact requirements depend on the implant and the patient’s condition. Some FDA-approved cervical artificial discs may be considered after a period of unsuccessful nonsurgical treatment, with the required duration depending on the implant and the condition being treated.
Disc Degeneration at One or Two Levels
Disc replacement may be an option when one worn-down disc is causing your symptoms. This is called single-level disc degeneration because it affects one disc space between two spinal bones. Some patients with two affected discs can also qualify for replacement in the neck or lower back. Your surgeon reviews your symptoms, examination, and imaging to identify which discs are causing problems and whether replacement is appropriate.
Age, Bone Strength, and Spinal Stability
Cervical disc replacement candidates are typically adults aged 20–70 years old, while lumbar disc replacement is more commonly considered for adults aged 18–60 years old. These are general ranges rather than a single age requirement that applies to every patient and implant.
Your vertebrae must be strong enough to hold the artificial disc securely, so osteoporosis can make replacement unsuitable. The small facet joints at the back of your spine also need to be relatively healthy because replacing a disc does not treat arthritis in those joints. Significant spinal instability, where vertebrae shift abnormally, can also rule out the procedure.
At Saadat Spine, we evaluate your spinal alignment, stability, and bone quality before recommending treatment.
Overall Health and Recovery Needs
Your surgeon reviews your medical history, medications, nicotine use, and prior spine operations before recommending surgery. Nicotine can interfere with healing, so your care team may ask you to stop using tobacco beforehand. You also need to follow temporary activity restrictions while your spine and the surgical site recover and the implant becomes securely integrated. Preserving motion does not mean the spine is ready for unrestricted lifting or exercise immediately afterward.
What’s Better: Disc Replacement or Fusion Surgery?
Neither procedure is better for everyone. Disc replacement preserves movement, while spinal fusion surgery may be more appropriate when your spine needs stabilization. Fusion joins vertebrae, preventing movement at the treated levels.
Fusion carries different risks, such as putting extra stress on nearby discs. Your surgeon can compare the expected benefits, risks, and effects on everyday movement to help you choose the appropriate treatment.
FAQs
Who Is Not a Good Candidate for Disc Replacement?
Disc replacement may not be appropriate when another condition makes the implant unsafe or unlikely to relieve your symptoms, such as:
- Osteoporosis,
- Severe facet arthritis,
- Spinal instability,
- An active infection,
- Known hypersensitivity or allergy to materials used in the implant, and
- Severe lumbar spinal stenosis.
Not qualifying for disc replacement does not automatically mean you need fusion. Your surgeon can discuss whether nonsurgical care or another operation would better address your condition.
How Common Is Disc Replacement Surgery?
Artificial disc replacement first gained FDA approval in 2004. However, spinal fusion remains the more commonly performed procedure.
What Are the Downsides of Disc Replacement?
Disc replacement may improve your symptoms without eliminating all your pain.
Other potential downsides include:
- Surgical complications. Infection, bleeding, and injury to nearby nerves or blood vessels can occur.
- Implant problems. An artificial disc can loosen, shift out of position, or break.
- Swallowing or voice changes. Cervical disc replacement can cause difficulty swallowing or hoarseness.
- Reduced movement. Despite the motion-preserving design, some patients experience loss of movement at the treated cervical level.
Some complications require another operation. Before deciding, discuss your individual risks and expected benefits with your surgeon.
Schedule Your Disc Replacement Evaluation with Saadat Spine
Disc replacement may be an option when the damaged disc explains your symptoms and your spine can safely support continued movement. An evaluation can clarify whether preserving motion is appropriate or whether another treatment would better address your condition.
Our team includes nurses, pain specialists, and clinicians who coordinate care before and after surgery. We welcome patients from across the United States to our Los Angeles and Orange County offices.
Before your visit, gather your imaging and treatment records. Bring your questions about everyday activity, expected pain relief, and recovery. Contact Saadat Spine to schedule a consultation and discuss whether ADR surgery is appropriate for you.
References Used to Inform This Page
To ensure the accuracy and clarity of this page, we referenced the following resources during the content development process:
- American Academy of Orthopaedic Surgeons
- American Association of Neurological Surgeons
- Cleveland Clinic, “Cervical Artificial Disk Replacement.” (Last updated September 2024).
- International Society for the Advancement of Spine Surgery, “ISASS Policy Statement – Lumbar Artificial Disc.” (March 2015).
- Spine Health, “Considerations for Cervical Disc Replacement Surgery.” (January 2019).