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Herniated Intervertebral Disc l: Introduction01:29

Herniated Intervertebral Disc l: Introduction

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Related Experiment Video

Updated: Jul 23, 2026

Author Spotlight: Scope of LE-ULBD as a Safe, Effective, and Minimally Invasive Approach to Treat Lumbar Spinal Stenosis
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Indirect Spinal Canal Decompression Using Ligamentotaxis Compared With Direct Posterior Canal Decompression in

Ghaffar Shokouhi1, Arad Iranmehr2, Peyman Ghoilpour1

  • 1Department of Neurosurgery, Tabriz University of Medical Sciences, Tabriz, Iran.

Medical Journal of the Islamic Republic of Iran
|July 17, 2023
PubMed
Summary

Direct decompression via laminectomy and indirect decompression using ligamentotaxis offer similar neurological and radiographic outcomes for thoracolumbar burst fractures. Both posterior approaches are safe and effective treatments for spinal canal decompression.

Keywords:
Burst fracturesDecompressionIndirectLigamentotaxis

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Area of Science:

  • Orthopedic Surgery
  • Neurosurgery
  • Spinal Surgery

Background:

  • Management of thoracolumbar burst fractures lacks a standardized care protocol.
  • Posterior surgical approaches remain a primary treatment modality.
  • Spinal canal decompression techniques for neurologically impaired patients are debated.

Purpose of the Study:

  • To compare direct laminectomy decompression with indirect decompression via ligamentotaxis/distraction.
  • To evaluate neurological and radiographic outcomes in patients with thoracolumbar burst fractures.

Main Methods:

  • A prospective, double-blind, randomized clinical trial involving 60 patients.
  • Patients were divided into two groups: direct decompression (laminectomy) and indirect decompression (ligamentotaxis/distraction).
  • Neurological (Frankel score) and radiographic parameters were assessed over a 6-month follow-up period.

Main Results:

  • Both groups showed improvement in Frankel scores, with no significant intergroup differences.
  • Significant improvements in local sagittal kyphosis, anterior vertebral height ratio, and posterior vertebral height ratio were observed in both groups.
  • A statistically significant difference was noted only in the posterior vertebral height ratio between the indirect and direct decompression groups (P=0.040) at 6 months.

Conclusions:

  • Posterior approaches utilizing ligamentotaxis are a safe and effective alternative for thoracolumbar burst fracture management.
  • Indirect decompression via ligamentotaxis may yield comparable outcomes to direct decompression with laminectomy.
  • These findings support ligamentotaxis as a viable option for spinal canal decompression in selected patients.