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Updated: Jun 10, 2026

Percutaneous Endoscopic Unilateral-Approach Bilateral Decompression for Lumbar Spinal Stenosis
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Post-Procedure CT Follow-up after Percutaneous Automated Lumbar Nucleotomy.

R Dullerud1, J G Johansen

  • 1Department of Neuroradiology, Ullevaal University Hospital; Oslo, Norway.

Interventional Neuroradiology : Journal of Peritherapeutic Neuroradiology, Surgical Procedures and Related Neurosciences
|August 5, 2010
PubMed
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Automated lumbar nucleotomy shows minimal soft tissue changes on CT scans, with most abnormalities like minor bleeding or gas collections not causing different clinical symptoms. This supports the procedure's low complication rate.

Area of Science:

  • Radiology
  • Minimally Invasive Spine Surgery

Background:

  • Automated lumbar nucleotomy is a minimally invasive procedure for disc treatment.
  • Understanding potential soft tissue changes is crucial for patient safety.

Purpose of the Study:

  • To evaluate the incidence and nature of soft tissue changes following automated lumbar nucleotomy.
  • To correlate imaging findings with clinical symptoms.

Main Methods:

  • Prospective cohort study design.
  • Follow-up computed tomography (CT) scans performed 4-6 hours post-procedure.
  • Analysis of 97 discs in 88 patients.

Main Results:

  • CT scans revealed abnormalities in 50 out of 97 treated discs.

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  • Minor bleeding was observed in 11 levels, primarily in subcutaneous fat and muscles.
  • Small gas collections were noted in 42 levels, including muscles, subcutaneous fat, and the epidural space.
  • Abnormal CT findings did not correlate with distinct clinical symptoms.

    • Conclusions:

    • Automated lumbar nucleotomy is associated with a low incidence of significant soft tissue complications.
    • Post-procedure CT findings, including minor bleeding and gas, are generally asymptomatic.
    • The study supports the safety profile of automated lumbar nucleotomy.