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Updated: Jun 3, 2025

Laminotomy for Lumbar Dorsal Root Ganglion Access and Injection in Swine
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Research Progress on the Posterior Midline Lumbar Spinous Process-Splitting Approach.

Yizhong Ma1, Lu Mao2, Guanyi Liu3

  • 1Health Science Center, Ningbo University, Ningbo, China.

Orthopaedic Surgery
|January 8, 2025
PubMed
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The spinous process-splitting approach (SPSA) minimizes paraspinal muscle damage during lumbar decompression, reducing atrophy and back pain. This technique offers a promising alternative to traditional laminectomy for improved patient recovery.

Area of Science:

  • Neurosurgery
  • Orthopedic Surgery
  • Spinal Surgery

Background:

  • Traditional posterior median approach laminectomy for lumbar decompression often results in paraspinal muscle atrophy and chronic low back pain.
  • Minimally invasive techniques are sought to reduce surgical morbidity associated with lumbar decompression.

Purpose of the Study:

  • To review the anatomical considerations, surgical techniques, and clinical applications of the posterior midline spinous process-splitting approach (SPSA).
  • To highlight the effectiveness of SPSA in reducing muscle atrophy and improving recovery outcomes compared to traditional methods.

Main Methods:

  • Review of anatomical considerations for SPSA.
  • Description of the surgical technique involving longitudinal splitting of the spinous process.
Keywords:
decompressionlumbar spineposterior midline approachspinous process

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  • Analysis of clinical applications for lumbar spinal stenosis, disc herniation, and spondylolisthesis.

    • Main Results:

    • SPSA minimizes damage to paraspinal muscles, preserving their integrity.
    • The approach provides adequate surgical access for decompression without muscle detachment.
    • Reduced incidence of muscle atrophy and chronic low back pain observed with SPSA.

    Conclusions:

    • SPSA is a viable alternative to traditional laminectomy, offering superior muscle preservation and improved recovery.
    • Further research is needed to establish long-term benefits and refine SPSA techniques.
    • SPSA shows potential for treating various lumbar spine conditions effectively.