Disc Replacement (Arthroplasty)
Motion-preserving alternative to spinal fusion for selected disc disease patients
Disc replacement — also called total disc arthroplasty — replaces a damaged intervertebral disc with an artificial implant that mimics the disc's natural movement. Unlike fusion surgery, which permanently locks adjacent vertebrae together, disc replacement preserves motion at the treated level. It is available for both the cervical spine (cervical disc replacement, CDR) and the lumbar spine (lumbar disc replacement, LDR), though cervical is more commonly performed. The procedure is designed for patients with disc disease who want to avoid the motion loss and adjacent segment stress associated with fusion.
Who Is a Candidate?
- Single-level cervical disc herniation causing radiculopathy or myelopathy (primary indication for CDR)
- Cervical disc disease in younger patients (<60) who want to preserve cervical motion
- Lumbar disc herniation or DDD causing persistent pain not responsive to conservative care (for LDR)
- No significant facet joint arthritis at the affected level (required for both CDR and LDR)
- No significant spinal instability, deformity, or osteoporosis
- Failed conservative treatment (physical therapy, medications, injections) for at least 6 weeks
What to Expect
1Before Surgery
Pre-operative imaging (MRI and X-rays) confirms the extent of disc disease and screens for contraindications. Facet joint health is critical — if the facet joints are arthritic, disc replacement is less appropriate. Medical clearance and pre-op testing are similar to fusion surgery. The procedure is performed under general anesthesia.
2The Procedure
For cervical disc replacement, the approach is identical to ACDF — a small incision at the front of the neck. The damaged disc is removed, and the artificial disc implant is placed in the disc space. Unlike fusion, no bone graft is used, and the implant is designed to allow flexion, extension, and rotation. For lumbar disc replacement, the approach is from the front of the abdomen (anterior). Surgery typically takes 1–2 hours for a single level.
3Recovery
Recovery from cervical disc replacement is similar to ACDF: home the same day or after one night; light activity in 1–2 weeks; return to work in 2–4 weeks for desk jobs. A soft collar may be worn short-term. Physical therapy begins at 4–6 weeks. Lumbar disc replacement has a longer recovery: 2–4 days in hospital; light activity at 3–4 weeks; full recovery in 3–4 months.
Typical Outcomes
For cervical disc replacement, outcomes are at least equivalent to ACDF for arm pain relief, with studies showing lower rates of adjacent segment disease requiring reoperation at 7–10 years. Motion preservation is maintained in the majority of patients at 5-year follow-up. For lumbar disc replacement, short-term outcomes are similar to fusion, but long-term evidence is more limited. Patient selection is critical — disc replacement works best in younger patients with isolated disc disease and minimal facet joint involvement.
Risks & Considerations
- Implant migration or wear (long-term, rare)
- Heterotopic ossification — bone formation that can restrict motion over time (reduces motion-preservation benefit)
- Device failure requiring revision surgery (rare)
- All risks of the anterior approach (dysphagia, hoarseness for cervical)
- Not appropriate if significant facet joint disease — may cause continued pain from the facets
- Less evidence base than fusion for complex cases or osteoporosis
Frequently Asked Questions
Is disc replacement better than ACDF for neck surgery?
For carefully selected patients — typically younger adults with single-level cervical disc disease without significant facet arthritis — studies show cervical disc replacement has equivalent or superior long-term outcomes compared to ACDF, with lower rates of reoperation due to adjacent segment disease. ACDF remains preferred for more complex cases, myelopathy with instability, or when multiple levels are affected.
Does disc replacement last a lifetime?
Cervical disc replacements have now been studied for 10+ years with excellent durability in most patients. The artificial disc does not "wear out" the same way a hip or knee replacement might in active patients. Long-term data beyond 15–20 years is still accumulating. Some patients may eventually develop heterotopic ossification (bone formation) that limits motion.
Does insurance cover disc replacement?
Cervical disc replacement (CDR) is FDA-approved and covered by most major insurers for appropriate single or two-level indications. Lumbar disc replacement coverage varies significantly by insurer. Pre-authorization is typically required, and coverage may be denied if conservative treatment criteria are not documented. Discuss coverage with your surgeon's office before scheduling.
Can I have disc replacement if I already had a fusion at an adjacent level?
Disc replacement adjacent to a prior fusion is technically possible but considered complex. Some surgeons use it specifically to reduce stress on the level next to a prior fusion (adjacent segment disease treatment). This is a case-by-case decision requiring an experienced spine surgeon.
Find a verified Disc Replacement (Arthroplasty) surgeon
Browse spine surgeons and neurosurgeons who perform disc replacement (arthroplasty). Filter by location, insurance, and availability.
Search spine specialists →Related Conditions
Medical disclaimer: This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with any questions you may have regarding a medical condition or surgical procedure. Last reviewed March 2026. CPT: 22856.