COURSE 3

Endoscopic Management of Lumbar Spinal Stenosis

The GORE System | Advanced Course in Endoscopic Decompression

Understanding Stenosis Beyond the MRI

Successful treatment of lumbar spinal stenosis requires more than recognition of narrowing on imaging.

The surgeon must understand the symptomatic neural structure, the anatomical location of compression, the contribution of dynamic factors, and the most appropriate decompression strategy.

This course introduces the GORE System approach to lumbar stenosis, including the SMRUTI approach to transforaminal access and intracanal decompression.

WHO SHOULD ATTEND?

Orthopaedic surgeons, neurosurgeons, and spine surgeons interested in endoscopic management of lumbar degenerative stenosis.

Prior experience in lumbar anatomy, clinical diagnosis, and transforaminal endoscopy is recommended.

COURSE CURRICULUM

Module 1 — Understanding Lumbar Stenosis

• Degenerative changes and the evolution of stenosis

• Foraminal, lateral recess, and central canal stenosis

• Static and dynamic contributors

• Mechanical compression and neural sensitization

• Clinical symptoms versus imaging severity

Module 2 — Clinical Diagnosis and Neurogenic Claudication

• Recognizing neurogenic claudication

• Walking tolerance and posture-dependent symptoms

• Differentiating vascular and neurogenic symptoms

• Neurological deficits and functional impairment

• Recognizing urgent neurological presentations

• Symptom–MRI correlation

Module 3 — Three-Dimensional Anatomy of Stenosis

• Lumbar foraminal anatomy

• Exiting and traversing nerve roots

• Facet joint hypertrophy

• Ligamentum flavum thickening and infolding

• Superior articular process and bony narrowing

• Relationship between the lateral recess and central canal

Module 4 — MRI Interpretation and Surgical Planning

• Sagittal, axial, and coronal imaging

• Limitations of conventional supine MRI

• Identifying the likely symptomatic level

• Foraminal versus intracanal compression

• Multilevel stenosis and clinical prioritization

• Imaging-based assessment of surgical feasibility

Module 5 — Principles of Endoscopic Decompression

• Surgical indications and contraindications

• Selecting the decompression target

• Bone and ligament removal principles

• Preservation of neural structures

• Recognizing adequate decompression

• Limitations of endoscopic approaches

Module 6 — Foraminal Stenosis

• Clinical presentation

• Foraminal bony and soft-tissue pathology

• Access planning

• Principles of endoscopic foraminoplasty

• Exiting nerve root protection

• Assessment of decompression

Module 7 — Lateral Recess Stenosis

• Anatomy of the traversing nerve root

• Superior articular process and ligamentous compression

• Understanding the subarticular corridor

• Transforaminal decompression planning

• Endoscopic identification of neural boundaries

• Avoiding incomplete decompression

Module 8 — Central Canal Stenosis

• Understanding central stenosis anatomy

• Selecting appropriate cases

• Intracanal endoscopic orientation

• Ligamentum flavum and bony decompression principles

• Dural protection and operative limitations

• When alternative surgical approaches are preferable

Module 9 — The SMRUTI Approach

Anatomically Directed Transforaminal Decompression

• Philosophy of the SMRUTI surgical approach

• Following the oblique course of the ligamentum flavum

• Foraminal roof and sublaminar relationships

• Understanding the transition from foraminal to intracanal anatomy

• The upper transforaminal route

• Surgical planning and orientation

• Anatomical limitations and safety considerations

This module presents the author's approach, with its rationale and practical applications distinguished from independently established evidence.

Module 10 — Difficult Cases and Complications

• Multilevel stenosis

• Severe degenerative narrowing

• Coexisting disc herniation

• Degenerative instability

• Recurrent symptoms after previous surgery

• Dural tears, neural injury, bleeding, and incomplete decompression

• Conversion and alternative treatment decisions

Module 11 — Timing of Intervention

• Progression of symptoms

• Functional deterioration and walking intolerance

• Progressive neurological deficits

• Bladder and bowel dysfunction as warning signs

• Balancing conservative management and intervention

• Diagnostic uncertainty and shared decision-making

Module 12 — Outcomes and Future Directions

• Clinical versus radiological outcomes

• Residual neural sensitization

• Persistent symptoms despite adequate decompression

• Functional recovery and rehabilitation

• Emerging physiological assessment concepts

• Research opportunities involving nerve excitability and functional monitoring

LEARNING OUTCOMES

Following the course, participants should be better prepared to:

1. Distinguish different anatomical patterns of lumbar stenosis.

2. Correlate clinical symptoms and MRI findings.

3. Understand the principles of transforaminal decompression.

4. Recognize anatomical considerations in foraminal and lateral recess surgery.

5. Explain the rationale of the SMRUTI approach.

6. Identify limitations, complications, and indications for alternative treatment.

7. Progress toward supervised hands-on learning.

EDUCATIONAL RESOURCES

Books: Relevant GORE System surgical manuals and lumbar stenosis teaching material.

Videos: Endoscopic anatomy, foraminal decompression, lateral recess decompression, and SMRUTI demonstrations.

Practical Training: Structured hands-on training and mentoring at Dervan.

CONTINUE YOUR LEARNING

Course 1 — Clinical Diagnosis and Symptom–MRI Correlation

Course 2 — Transforaminal Endoscopy for Lumbar Disc Disorders

Dervan Hands-on Training and Surgical Mentoring

This course is intended for qualified surgical professionals. It does not replace supervised operative training, clinical judgment, or institutional credentialing. Emerging physiological concepts and author-specific hypotheses are presented separately from established clinical evidence.