Pure endoscopic minimally invasive surgery with a non‑expandable tubular retractor for intradural extramedullary

Gang Zhang1,2, Bin Jia1, Pan Wang1,2

  • 1Department of Neurosurgery, Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing 401147, P.R. China.

Insights

Minimally invasive spinal surgery (MISS) using a pure endoscopic approach with parallel non-expandable tubular retractors offers a safe and effective strategy for intradural extramedullary (IDEM) spinal tumors. This technique achieved gross total resection and significant symptom improvement in patients.

Area of Science:

  • Neurosurgery
  • Spinal Surgery
  • Endoscopic Techniques

Background:

  • Minimally invasive spinal surgery (MISS) is established for intradural extramedullary (IDEM) spinal tumors.
  • Current MISS techniques primarily rely on microscopic visualization.
  • Pure endoscopic approaches using parallel non-expandable tubular retractors for IDEM tumors have not been previously reported.

Purpose of the Study:

  • To evaluate the safety and efficacy of pure endoscopic MISS with parallel non-expandable tubular retractors for IDEM spinal tumors.
  • To assess the extent of tumor resection and clinical outcomes in a case series.

Main Methods:

  • A case series of patients with IDEM spinal tumors treated with pure endoscopic MISS using parallel non-expandable tubular retractors.
  • Tumor resection extent assessed by preoperative and postoperative MRI.
  • Clinical outcomes evaluated using the visual analog scale for pain and the modified McCormick scale for neurological status.

Main Results:

  • Postoperative MRI confirmed gross total resection in all cases.
  • Patients experienced significant improvement in clinical symptoms, including reduced pain and improved neurological deficits.
  • No serious postoperative complications were reported.

Conclusions:

  • Pure endoscopic MISS with parallel non-expandable tubular retractors is a safe and effective surgical option for IDEM spinal tumors.
  • This technique facilitates gross total resection and leads to significant clinical improvement.
  • Further research may establish this as a standard approach for IDEM spinal tumor resection.

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