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Related Concept Videos

Herniated Intervertebral Disc l: Introduction01:29

Herniated Intervertebral Disc l: Introduction

Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...
Local Anesthetics: Clinical Application as Spinal Anesthesia01:11

Local Anesthetics: Clinical Application as Spinal Anesthesia

Spinal anesthetics are given during lower abdomen and limb surgeries to block sensory and motor neurons. They are administered in the mid to low lumbar regions, primarily acting on the cauda equina's nerve roots. The blockade level depends on the local anesthetic (LA) concentration. Usually, low LA concentrations are sufficient to block sensory fibers, while only high LA concentrations block motor fibers. Other factors like injection volume and speed, the patient's posture, and the drug...

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Related Experiment Video

Updated: Jun 27, 2026

The Third Channel-Assisted Unilateral Biportal Endoscopic Technique for Lumbar Spinal Stenosis Combined with Contralateral Disc Herniation
06:26

The Third Channel-Assisted Unilateral Biportal Endoscopic Technique for Lumbar Spinal Stenosis Combined with Contralateral Disc Herniation

Published on: November 17, 2023

Lumbar canal stenosis.

D J Mazanec1, Y Drucker, A M Segal

  • 1Center for the Spine (D.J.M., A.M.S.) and Department of Rheumatic and Immunologic Disease (Y.D.), Cleveland Clinic Foundation, Cleveland, Ohio.

Journal of Clinical Rheumatology : Practical Reports on Rheumatic & Musculoskeletal Diseases
|December 17, 2008
PubMed
Summary
This summary is machine-generated.

Lumbar canal stenosis, a common condition in older adults, often causes neurogenic claudication. Nonoperative treatments are recommended before considering surgery due to disappointing surgical outcomes.

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Area of Science:

  • Geriatric Medicine
  • Neurosurgery
  • Physical Medicine and Rehabilitation

Background:

  • Lumbar canal stenosis (LCS) is increasingly prevalent in individuals over 65.
  • Neurogenic claudication is the primary clinical manifestation of LCS.
  • The natural history and long-term surgical outcomes of LCS require further elucidation.

Purpose of the Study:

  • To describe the clinical syndrome of lumbar canal stenosis.
  • To review the natural history and treatment outcomes for LCS.
  • To propose a clinical pathway for managing symptomatic LCS.

Main Methods:

  • Literature review on lumbar canal stenosis, neurogenic claudication, and treatment outcomes.
  • Analysis of nonoperative management strategies including physical therapy, medications, and injections.
  • Evaluation of surgical outcomes and reoperation rates.

Main Results:

  • Surgical therapy for LCS often yields disappointing long-term results.
  • Over 10% of patients require reoperation after initial surgery.
  • Nonoperative options include physical therapy, calcitonin, analgesics, and epidural steroid injections.

Conclusions:

  • An initial nonoperative approach is suggested for managing symptomatic lumbar canal stenosis.
  • Further research is needed to fully describe the natural history of LCS.
  • Optimizing nonoperative management may reduce the need for surgery and reoperations.