Anterior Endoscopic Cervical Discectomy for Spinal Motion Preservation

John C. Chiu, MD
California Spine Institute - Thousand Oaks, CA 91320, USA - www.spinecenter.com
Introduction

To demonstrate evolving out-patient anterior endoscopic microdecompressive cervical discectomy, with low energy non-ablative Holmium laser for disc shrinking and tightening effect (laser thermodiskoplasty), performed for treatment of symptomatic herniated cervical disc to be efficacious and safe, and preserves spinal motion.

Indications
  • Neck with arm pain (radicular pain) associated with paresthesia, sensory loss, muscle weakness and/or decreased reflexes
  • Intractable cervicogenic headache
  • No improvement after 12 weeks of conservative therapy
  • MRI or CT scan positive for disc herniation
  • Positive provocative discogram
  • Positive EMG considered helpful
  • Multiple discs can be treated at one sitting
  • Post fusion junctional disc herniation syndrome

Material and Methods

Since 1994, 1260 patients (2097 Discs), males: 643 - females: 617, who failed at least 12 weeks of conservative care were treated. Levels were C2 to C7, inclusive. All patients demonstrated unilateral radicular pain of a specific dermatome, single level or multiple levels, confirmed with EMG/NCV, MRI or CT scans demonstrated the herniated cervical disc. Anterior endoscopic microdecompressive cervical discectomy technique is described. Non-ablative lower Holmium laser energy was added for disc shrinkage.

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Results

Average time to return to work was ten days. At an average follow-up of 3 years. For single level, 94% had good to excellent symptomatic relief and spinal motion preservation. There were no intraoperative complications. Postoperatively, one patient with transient Horner's syndrome and one transient hoarseness voice were noted. Seventy five patients had persistent neck and upper extremity pain associated with paresthesia, after surgery.

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Conclusion

This evolving anterior endoscopic microdecompressive cervical discectomy with added application of non-ablative lower Holmium laser energy for disc shrinkage (laser thermodiskoplasty), has proven to be safe, less traumatic, easier, and efficacious with significant economic savings. It preserves spinal motion and provides a channel for spinal arthroplasty. It is an effective alternative or replacement for conventional open spinal surgery for discectomy, and can decompress stenosis, in degenerative spine disease.

Learning Objective

The presentation provides the information for participants familiar with Anterior Endoscopic Cervical Discectomy: 1. Recognize the surgical indication. 2. The surgical technique. 3. Potential complications and avoidance.

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