Cervical Disc Replacement in Fort Wayne
Cervical disc replacement — also called artificial disc replacement or cervical arthroplasty — is a surgical procedure that removes a damaged cervical disc and replaces it with an FDA-approved artificial disc designed to preserve natural neck motion at that level. Unlike ACDF (fusion), which eliminates movement by joining two vertebrae into a single bone segment, disc replacement maintains the spine's ability to bend, turn, and flex. The procedure is considered only when a patient's symptoms, physical examination, and imaging findings — typically an MRI showing nerve compression from a herniated or degenerated disc — all point to the same source of arm pain or neurological deficit, and when non-surgical treatments have not provided adequate relief.
Who may be a candidate
Candidacy for cervical disc replacement is determined through a thorough evaluation of imaging, clinical symptoms, and overall spinal health. The following factors are generally associated with favorable candidacy:
- Arm pain from a pinched nerve (cervical radiculopathy) — pain, numbness, tingling, or weakness radiating into the shoulder, arm, or hand that correlates with imaging findings
- One- or two-level disc disease when imaging, exam, and symptoms all match the affected level(s) — two-level disc replacement may be considered in carefully selected patients
- Preserved motion at the affected segment — the disc space has not spontaneously fused or lost all movement
- No severe instability — the vertebrae are not abnormally translating or shifting relative to one another on flexion/extension X-rays
- No advanced facet arthritis — the small joints at the back of the spine that guide and limit motion are healthy enough to support a moving implant
These are general considerations. Only a clinical evaluation — including a physical exam and review of advanced imaging — can determine whether cervical disc replacement is appropriate for an individual patient.
When fusion may be better
Cervical disc replacement is not the right choice for every patient. In certain situations, ACDF fusion — which has decades of clinical evidence and broader applicability — may be the more predictable and reliable option:
- Instability or deformity — when vertebrae move abnormally (spondylolisthesis) or the neck has developed a significant kyphotic (forward-bent) posture, fusion provides the structural stability a motion-preserving implant cannot
- Severe facet arthritis — when the facet joints are significantly degenerated, maintaining motion at that level may cause ongoing pain; fusing the segment eliminates painful joint movement
- Multi-level disease beyond two levels — when three or more discs are significantly degenerated, the cumulative motion demands on multiple artificial discs may not be well tolerated
- Active infection or tumor — these conditions require a different surgical strategy entirely and may contraindicate implant placement
- Other situations where motion preservation is not safe — including severe osteoporosis, ossification of the posterior longitudinal ligament (OPLL), or known allergy to implant materials such as cobalt-chromium or polyethylene
Disc replacement vs ACDF
Both cervical disc replacement and ACDF are well-established anterior neck procedures that relieve nerve compression. The table below outlines the key differences — it is not a ranking of which is better, but rather a summary of how the two approaches differ. The appropriate choice depends on an individual patient's anatomy, condition, and priorities.
| Aspect | Cervical Disc Replacement | ACDF (Fusion) |
|---|---|---|
| Motion at treated level | Preserved — the artificial disc allows bending, turning, and flexing | Eliminated — the two vertebrae heal into one solid bone segment |
| Fusion required | No — no bone graft or waiting for bones to heal together | Yes — a bone graft or cage fills the disc space and heals over several months |
| Collar / restrictions | Typically no collar required; gentle motion encouraged early | May require a cervical collar temporarily while the fusion heals |
| Adjacent-level stress | May reduce stress on neighboring discs compared to fusion, though long-term data continue to evolve | Increases motion demands on the levels above and below, which may contribute to adjacent-segment changes over many years |
| Candidacy scope | Narrower — requires healthy facet joints, preserved alignment, and good bone quality | Broader — applicable to a wider range of cervical conditions including instability and multi-level disease |
This comparison is for general educational purposes. Individual recommendations depend on clinical and imaging findings.
What Dr. Greenberg reviews at the visit
During a consultation, Dr. Greenberg conducts a comprehensive assessment to determine whether cervical disc replacement — or an alternative approach — is appropriate. The evaluation typically includes:
- MRI review — a detailed assessment of the discs, spinal cord, and nerve roots to identify which level(s) are causing compression and whether the spinal cord is involved
- X-rays if needed — standing or flexion/extension views to evaluate spinal alignment, disc height, instability, and facet joint condition
- Neurologic exam — testing strength, sensation, and reflexes in the arms and hands to map symptoms to specific nerve distributions
- Goals and expectations — a conversation about what activities matter most, including work demands, recreational goals, and what recovery realistically involves
- Work and activity needs — understanding physical job requirements, athletic activities, and any specific motions or loads the patient needs to return to
- Prior treatments — a review of what has been tried (physical therapy, injections, medications, activity modification) and how the symptoms responded
When to seek urgent evaluation
Progressive weakness in the arms or legs, difficulty with balance or walking, changes in bladder or bowel function, and worsening symptoms of cervical myelopathy (such as dropping objects, difficulty with fine motor tasks, or a feeling of unsteadiness) require prompt medical attention. If you experience any of these symptoms, contact your physician or go to the nearest emergency department.
Frequently Asked Questions
Is disc replacement better than fusion?
Neither procedure is universally better. For appropriate candidates with healthy facet joints and single-level disease, disc replacement preserves motion and may reduce adjacent-level stress over time compared to fusion. For patients with instability, significant arthritis, or multi-level disease, ACDF fusion is often the more reliable choice. The right procedure depends on each patient's specific anatomy, imaging findings, and goals. Dr. Greenberg reviews each case individually to recommend the approach that best addresses the underlying condition.
How do I know if I am a candidate for cervical disc replacement?
Candidacy is determined through a comprehensive evaluation including a detailed history, physical examination, and imaging — typically an MRI to assess the discs, nerves, and spinal cord, plus X-rays or CT to evaluate bone quality, alignment, and facet joints. The strongest candidates tend to be active adults with single-level disc herniation causing arm pain, preserved facet joints, and normal spinal alignment. Only a clinical evaluation can confirm whether disc replacement is appropriate for a specific individual.
Can I get a second opinion if fusion was recommended?
Yes. Many patients seek a second opinion when ACDF fusion has been recommended elsewhere to learn whether cervical disc replacement may be an appropriate motion-preserving alternative. Dr. Greenberg reviews outside MRIs, X-rays, and clinical records, then provides an independent assessment of candidacy for disc replacement as well as other surgical and non-surgical options. A second opinion does not obligate a patient to change surgeons or treatment plans. Learn more about the second opinion process at Greenberg Spine.
How long is recovery after cervical disc replacement?
Because disc replacement does not require bone healing, many patients return to light activities and desk work within two to four weeks. A return to recreational sports and more demanding activities is typically possible by three to six months, once the soft tissues have healed and neck strength has returned. Individual recovery timelines vary based on the patient's overall health, the nature of their work, and the extent of nerve compression before surgery. Dr. Greenberg discusses a personalized recovery plan during the pre-operative visit.
Related information
ACDF (Fusion Surgery)
The traditional fusion approach for cervical disc disease — learn when it may be the better option
Cervical Radiculopathy
Understanding the pinched nerve condition that cervical disc replacement treats
Second Opinion Program
An independent review of your imaging and treatment plan if surgery has been recommended
Spine Surgery Second Opinion — Indiana
Guidance for patients across Indiana considering or questioning a spine surgery recommendation
About this content
This page was written and clinically reviewed by Marc Greenberg, MD, a fellowship-trained spine surgeon who trained at Mayo Clinic, Johns Hopkins, and Brown University, practicing in Fort Wayne, Indiana. Information is for educational purposes only and is not a substitute for medical advice from your physician.
This is general educational information, not medical advice. Symptoms vary by person — a clinical evaluation is the only way to know what's right for you.