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Thoracic microendoscopic discectomy: a human cadaver study.

Robert E Isaacs1, Vinod K Podichetty, Faheem A Sandhu

  • 1Spine Surgery, Duke University Medical Center, Durham, North Carolina 27710, USA. podichv@ccf.org

Spine
|May 18, 2005
PubMed
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This study demonstrates a new posterolateral thoracic microendoscopic discectomy technique in cadavers. The minimally invasive approach effectively treats thoracic disc herniations without entering the chest cavity.

Area of Science:

  • Neurosurgery
  • Minimally Invasive Spine Surgery
  • Spinal Anatomy

Background:

  • Thoracoscopic discectomy provides ventral access but requires thoracic cavity entry.
  • A posterolateral approach avoids thoracic cavity entry, potentially reducing morbidity.
  • Adapting minimal access techniques may improve recovery for thoracic disc herniations.

Purpose of the Study:

  • To introduce and assess a novel, minimally invasive posterolateral endoscopic technique for thoracic disc herniation.
  • To evaluate the feasibility of percutaneous posterolateral thoracic microendoscopic discectomy.

Main Methods:

  • The study utilized two human cadaver torsos.
  • Percutaneous posterolateral thoracic microendoscopic discectomies were performed on mid and lower thoracic spine levels.

Related Experiment Videos

  • Operative time, extent of discectomy, and bone removal were assessed via CT myelography.

    • Main Results:

    • Nine discectomies were successfully performed (T5-T10) with an average operative time of 60 minutes.
    • An average of 3.4 mm of the facet complex was removed (35.4%).
    • An average of 73.5% spinal canal decompression was achieved.

    Conclusions:

    • Thoracic microendoscopic discectomy via a posterolateral approach is feasible and avoids chest entry.
    • The technique provides significant canal decompression with minimal bone removal.
    • This method offers an alternative to traditional discectomy, potentially reducing associated morbidity.