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Related Concept Videos

Local Anesthetics: Clinical Application as Spinal Anesthesia01:11

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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: Jan 3, 2026

Optimizing Minimally Invasive Spine Surgery: A Fully 3D CT O-Arm Navigated Workflow in MIS TLIF
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Optimizing Minimally Invasive Spine Surgery: A Fully 3D CT O-Arm Navigated Workflow in MIS TLIF

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Preoperative coil localization for spinal surgery: technical note.

Mendel Castle-Kirszbaum1, Julian Maingard2, Tony Goldschlager1,3

  • 11Department of Neurosurgery and.

Journal of Neurosurgery. Spine
|November 16, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces a novel preoperative localization technique for spinal surgery using CT-guided radiopaque markers. This method enhances surgical accuracy and prevents wrong-site procedures, especially when fluoroscopy is challenging.

Keywords:
coillocalizationspinesurgical techniquewrong levelwrong site

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Area of Science:

  • Neurosurgery
  • Radiology
  • Surgical Navigation

Background:

  • Intraoperative localization is critical for spinal surgery outcomes and preventing wrong-site surgery.
  • Standard intraoperative fluoroscopy can be limited by anatomical variations, body habitus, and specific spinal levels.
  • Limitations of fluoroscopy necessitate improved preoperative localization strategies.

Purpose of the Study:

  • To present a novel technique for preoperative spinal localization using radiopaque markers.
  • To enhance surgical accuracy and prevent wrong-site surgery in spinal procedures.
  • To offer an effective alternative to fluoroscopy in challenging localization scenarios.

Main Methods:

  • A technique utilizing CT-guided, percutaneously placed radiopaque markers (microcoils) at fixed anatomical landmarks.
  • Low-dose CT scanning of the neuraxis to identify landmarks in an outpatient setting.
  • Percutaneous insertion of a microcoil into the periosteum of the pedicle under local anesthesia and CT guidance.

Main Results:

  • Preoperative placement of radiopaque markers is an effective tool for avoiding wrong-site surgery.
  • The technique is accurate, effective, and expeditious.
  • The method is easily performed in an outpatient setting.

Conclusions:

  • The described preoperative localization method using CT-guided radiopaque markers is a valuable tool for spinal surgery.
  • This technique offers a reliable solution for accurate intraoperative localization, particularly when fluoroscopy is problematic.
  • The method facilitates improved surgical outcomes by minimizing the risk of wrong-site surgery.