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[Intraoperative spinal sonography].

K Lerch1, M Völk, C Neumann

  • 1Orthopädische Universitätsklinik Regensburg, Germany.

Ultraschall in Der Medizin (Stuttgart, Germany : 1980)
|April 19, 2002
PubMed
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Intraoperative ultrasonography effectively visualizes spinal stenosis causes like bony fragments or tumors, guiding surgeons for complete spinal cord decompression. This real-time imaging ensures accurate surgical control and confirms successful decompression.

Area of Science:

  • Neurosurgery
  • Medical Imaging

Background:

  • Spinal stenosis due to bony fragments or tumors poses surgical challenges.
  • Accurate intraoperative assessment is crucial for successful decompression.

Purpose of the Study:

  • To evaluate the utility of intraoperative ultrasonography in spinal stenosis surgery.
  • To compare ultrasound findings with preoperative and postoperative computed tomographies.

Main Methods:

  • Intraoperative sonography was performed in 20 patients undergoing laminotomy or laminectomy for spinal stenosis.
  • Ultrasound images were correlated with pre- and postoperative CT scans.

Main Results:

  • Sonography clearly distinguished vertebral walls, tumor tissue, and the spinal cord.

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  • The dural sheath was visible even with severe compression.
  • Bony fragments and herniated discs were identifiable.
  • Ultrasound guided instrument placement and confirmed complete decompression by visualizing the restored epidural space.

    • Conclusions:

    • Intraoperative ultrasound is a reliable, repeatable, real-time method for assessing spinal canal restoration.
    • Surgeons can control decompression extent and accuracy using intraoperative sonography.