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Transforaminal Full-Endoscopic Lumbar Foraminotomy Under Local Anesthesia for L5/S1 Adjacent Segment Foraminal Stenosis
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The Evolution and Advancement of Endoscopic Foraminal Surgery: One Surgeon's Experience Incorporating Adjunctive
1The Arizona Institute for Minimally Invasive Spine Care, Phoenix, Arizona.
SAS Journal
|March 25, 2015
Summary
Foraminal endoscopic spine surgery offers a minimally invasive approach for lumbar spine conditions, preserving muscle and motion. This technique advances treatment beyond simple discectomy for complex degenerative issues.
Area of Science:
- Minimally Invasive Spine Surgery
- Spinal Endoscopy
- Degenerative Lumbar Spine Conditions
Background:
- Endoscopic spine surgery has evolved with improved technology, enabling visualization and treatment of lumbar spine pathology through the foramen.
- Foraminal endoscopic surgery is a less invasive alternative to traditional methods, preserving the multifidus muscle and promoting faster recovery.
- It offers an alternative to spinal decompression and fusion for sciatica and back pain when conservative treatments fail.
Purpose of the Study:
- To describe the evolution and expanded capabilities of transforaminal endoscopic surgery.
- To highlight its advantages over open surgery for specific degenerative lumbar spine conditions.
- To detail the techniques and applications of foraminal endoscopic surgery.
Main Methods:
- Refinement of needle trajectory and cannula placement for precise targeting of herniations.
- Development of new instrumentation and biportal techniques for comprehensive disc removal.
- Advancement of foraminoscopes, use of high-speed burrs, and recognition of foraminal pathoanatomy.
- Implementation of the YESS technique including protocols for instrument placement, chromodiscography, selective discectomy, thermal annuloplasty, foraminoplasty, epidural exploration, and nerve probing.
Main Results:
- Endoscopic foraminal surgery treats conditions beyond disc decompression, including discogenic pain and failed back surgery syndrome.
- Over 3000 patients treated since 1991, with initial cases forming the basis for technique expansion.
- New instruments and therapies enhanced selective endoscopic discectomy and thermal annuloplasty, addressing novel pathoanatomic conditions.
Conclusions:
- Spine surgeons require new skills to adapt to advancing endoscopic technology.
- Emphasis is placed on visualizing painful pathoanatomy and preserving spinal mobility.
- Future directions include nucleus replacement, annular repair, biologics, and transforaminal interbody fusion as a last resort.

