Mobi-C Artificial Disc

Mobi-C® Artificial Disc

A new advancement in spine surgery and spine implant technology, the artificial disc, may help people with neck pain avoid spinal fusion and preserve the natural motion of the neck.

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The Surgical Process

When a natural disc herniates or becomes badly degenerated, it loses its shock-absorbing ability, which can narrow the space between vertebrae. In fusion surgery, the damaged disc isn’t repaired but rather is removed and replaced with bone that restores the space between the vertebrae. However, this bone locks the vertebrae into place, which can then damage other discs above and below. Artificial discs are designed to retain the natural movement in the spine by duplicating the rotational function of a natural disc. Most artificial disc designs have plates that attach to the vertebrae and a rotational component that fits between these fixation plates.

About Artificial Disc Replacement

New research studies by the North American Spine Society — the most respected international society of spine surgeons — have shown that when a person has a herniated disc in the neck, and traditional fusion surgery is performed, there is an increased incidence of herniation at an adjacent segment. For these people, the newest FDA-approved artificial discs for the cervical spine can be of great benefit, explains Sanjay Jatana, MD, a Colorado fellowship-trained orthopedic spine surgeon who only does neck surgery.

Spinal implant
Mobi-C Artificial Disc

“The downside of spinal fusion surgery is that locks two vertebrae in place,” Dr. Jatana notes. “This in turn puts additional stress on discs above and below the affected area, which can lead to further disc herniation with the discs above and below the damaged disc. This process is called “adjacent segment disease” and it’s one of the main issues artificial discs were designed to address.”

The benefit of an artificial disc is that it retains the natural rotation of the vertebrae in the neck, which would otherwise be locked together in a traditional spine fusion surgery. By preserving motion, this lessens the risk that other adjacent discs might herniate as well.

Dr. Jatana is trained in the use of a variety of artificial discs for the neck, but he notes that the Mobi-C disc was the first disc approved by the US Food and Drug Administration (FDA) for use at two levels in the neck. This can be of great benefit to those people with degenerative discs at more than one level in the neck and would otherwise need a fusion at the other level which in turn would restrict rotation.

Dr. Jatana also provides two other specialized neck surgeries that aren’t typically provided by other Colorado spine surgeons:
• Cervical Lamino-Foraminotomy
• Cervical Laminoplasty

“Both of these surgeries are motion-preserving non-fusion neck surgeries,” explains Dr. Jatana. “These surgeries require specialized expertise in neck surgery because they involve a posterior approach (from the back of the neck), the use of tiny instruments and microsurgery. The benefit of these two surgeries is that they are minimally invasive, non-fusion, and motion preserving approaches that provide a faster return to activity.

Patient Testimonial

Nancy had a two level artificial disc replacement in her neck with Dr. Jatana in Denver, Colorado. A traditional spinal fusion would have severely limited her range of motion in her neck, potentially putting more strain on the other discs. The two artificial discs provide motion preservation which lessens the stress on the remaining cervical discs.

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