C6-C7 Disc Replacement Success Rate

The C6-C7 segment of the cervical spine plays a vital role in upper body function, supporting the neck, anchoring key muscles, and housing nerve roots responsible for sensation and movement in the arm and hand. When the disc at this level becomes damaged—whether due to injury, age-related degeneration, or disease—it can significantly impact daily life.

Artificial disc replacement (ADR) offers a modern alternative to spinal fusion for treating C6-C7 disc issues. This motion-preserving surgery is designed to relieve pain while maintaining natural movement in the neck. With excellent success rates and long-term durability, C6-C7 ADR has become one of the most effective options for eligible patients. At ADR Spine, Dr. Todd H. Lanman leads the field in cervical disc replacement, helping patients return to the life they love.

Understanding the C6-C7 Vertebral Segment

Importance of C6-C7 in Cervical Spine Function

Located near the base of the neck, the C6-C7 vertebral segment absorbs shock, allows for head and neck movement, and protects the spinal cord and C7 nerve root. This nerve root controls several muscles in the arm and hand, and is closely associated with the triceps and the sensation of the middle finger.

Common conditions affecting C6-C7 include:

• Degenerative Disc Disease (DDD): Wear and tear over time causes disc height loss, inflammation, and instability.
• Disc Herniation: A ruptured or bulging disc can compress nearby nerves, causing pain and neurological symptoms.

Symptoms of C6-C7 Disc Problems

Damage at this level may lead to:

• Chronic neck pain and stiffness
• Reduced range of motion in the neck
• Pain radiating to the shoulder, arm, or hand
• Numbness, tingling, or weakness—especially along the C7 dermatome (index & middle finger)
• Difficulty with grip strength or pushing motions

These symptoms can interfere with work, exercise, sleep, and basic daily tasks.

Artificial Disc Replacement (ADR) for C6-C7

What Is C6-C7 Artificial Disc Replacement?

C6-C7 ADR involves removing the damaged disc and replacing it with a biomechanical implant that mimics the motion and cushioning of a natural disc. The goal is to decompress nerves, relieve pain, and preserve normal movement of the cervical spine.

Advantages of ADR Over C6-C7 Fusion

Traditional spinal fusion eliminates motion at the treated level by permanently joining two vertebrae. While this can relieve pain, it also places added stress on adjacent discs, which may accelerate degeneration.

Studies suggest that ADR preserves mobility at the C6-C7 level, which may lower the risk of adjacent segment disease compared to fusion by maintaining natural spinal mechanics, especially in patients with otherwise healthy adjacent discs.

Success Rates of C6-C7 Artificial Disc Replacement

High Clinical Success Rates

Numerous studies have demonstrated the effectiveness of ADR at C6-C7. Clinical trials for FDA-approved devices like the Prestige LP and M6 have shown:

• Pain reduction in the neck and arms
• Improved neurological function
• Higher rates of patient satisfaction compared to fusion
• Lower rates of secondary surgeries at adjacent levels

Prospective, peer-reviewed randomized clinical trials have shown that patients receiving cervical artificial disc replacement achieve outcomes that are comparable—or in some cases superior—to those with spinal fusion at five-year follow-up, and even show better pain and function scores at seven years in device-specific studies.

Long-Term Outcomes and Durability

Modern artificial discs are engineered for longevity. Clinical studies show that artificial disc replacement at the C6–C7 level provides durable outcomes over the long term. In a 10‑year randomized trial using the Prestige LP device, patients showed significantly higher overall success rates and better function compared to fusion. A meta‑analysis of long‑term ADR compared to fusion revealed lower reoperation rates (9% vs. 32%) and sustained improvements in neck disability at ten years post‑surgery.

Factors Contributing to High Success Rates

• Patient Selection: Careful evaluation ensures that ADR is performed on candidates most likely to benefit.
• Surgical Expertise: Research supports that outcomes are generally better when ADR is performed by surgeons with extensive experience in motion-preserving spine techniques.
• Post-operative Rehabilitation: Following a structured physical therapy plan supports optimal healing and function.

Benefits of C6-C7 Disc Replacement

Significant Pain Relief

By removing the source of nerve compression and inflammation, ADR can provide rapid and lasting relief from neck and arm pain, helping patients regain comfort and confidence.

Restored Mobility and Function

Unlike fusion, which restricts movement, ADR helps maintain a natural range of motion. Patients can often return to activities such as driving, working out, or playing sports with fewer restrictions.

Quicker Recovery Compared to Fusion

Many patients experience a quicker return to activity following ADR compared to fusion, particularly when motion preservation techniques support earlier mobility. This includes:

• Less post-operative discomfort
• Shorter rehabilitation periods
• Earlier return to daily activities

While individual experiences vary, many return to light activity within a few weeks.

Potential Risks and Considerations

Overview of Surgical Risks

As with any surgery, C6-C7 ADR carries some risks, including:

• Infection
• Bleeding
• Nerve injury
• Implant migration or wear (rare with modern devices)

A thorough discussion with your surgeon will help you understand the risks and how they are managed.

Managing Expectations

While most patients experience significant improvement, outcomes can vary. It’s essential to have realistic expectations and follow all post-operative guidelines closely for optimal results.

Why Choose ADR Spine for C6-C7 Disc Replacement?

At ADR Spine, we specialize in motion-preserving spine surgery and artificial disc technology. Dr. Todd H. Lanman is one of the world’s leading authorities on cervical disc replacement and has helped pioneer the use of devices such as Prestige LP and M6-C through FDA clinical trials.

What sets ADR Spine apart:

• Decades of focused expertise in cervical ADR
• Individualized treatment planning based on your spinal condition, age, activity level, and overall health
• A commitment to preserving motion whenever possible
• Dr. Lanman’s 4D Health™ approach, which incorporates spinal health, overall wellness, and long-term mobility into every decision

Schedule Your Consultation With ADR Spine

If you’re experiencing chronic neck pain, arm symptoms, or have been told you need a fusion at C6-C7, consider seeking a comprehensive evaluation at ADR Spine. Our team can help determine if artificial disc replacement is right for you and guide you toward long-term relief and restored motion.

Take the next step toward feeling better. Schedule a consultation today.