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Related Concept Videos

Local Anesthetics: Clinical Application as Spinal Anesthesia01:11

Local Anesthetics: Clinical Application as Spinal Anesthesia

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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: Feb 27, 2026

Spinal Hernia Repair and Cauda Equina Repositioning After Lumbar Decompression under Three-Dimensional Microscopy: A Case Report and Literature Review
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Spinal Hernia Repair and Cauda Equina Repositioning After Lumbar Decompression under Three-Dimensional Microscopy: A Case Report and Literature Review

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Indirect decompression in spinal surgery.

Hiroyuki Yoshihara1

  • 1Department of Orthopaedic Surgery & Rehabilitation Medicine, SUNY Downstate Medical Center, USA; Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Japan.

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia
|July 10, 2017
PubMed
Summary

Indirect spinal decompression avoids resecting tissue to decompress nerves. Techniques include segmental distraction and global alignment, potentially reducing surgical risks and expanding treatment options.

Keywords:
Indirect decompressionLaminoplastyLigamentotaxisSegmental distractionSpinal surgery

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Area of Science:

  • Neurosurgery
  • Orthopedic Surgery
  • Spinal Medicine

Background:

  • Indirect spinal decompression offers an alternative to tissue resection for nerve decompression.
  • Understanding these techniques can enhance surgical options and patient outcomes.

Purpose of the Study:

  • To define and categorize indirect spinal decompression procedures.
  • To highlight the benefits of indirect decompression in spinal surgery.

Main Methods:

  • Segmental procedures: distraction between vertebrae to open neural foramina and increase epidural space (via disc space or posterior instrumentation).
  • Global spinal alignment procedures: facilitating dorsal migration of the spinal cord away from anterior compression.

Main Results:

  • Indirect decompression preserves neural tissues by avoiding resection of compressing elements.
  • Segmental distraction increases space around neural structures.
  • Global alignment repositions the spinal cord.

Conclusions:

  • Indirect spinal decompression broadens surgical treatment options.
  • These methods may decrease the risk of spinal nerve tissue injury.
  • Further understanding of indirect decompression is valuable for spinal surgery.