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Pedicle subtraction osteotomy.

Praveen V Mummaneni1, Sanjay S Dhall, Stephen L Ondra

  • 1Department of Neurosurgery, University of California, San Francisco, San Francisco, California 94143, USA. vmum@aol.com

Neurosurgery
|October 2, 2008
PubMed
Summary
This summary is machine-generated.

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Pedicle subtraction osteotomy (PSO) for sagittal deformity correction has a high complication rate, exceeding 50% in revision cases. Strategies to avoid complications are discussed.

Area of Science:

  • Spine surgery
  • Orthopedics
  • Neurosurgery

Background:

  • Pedicle subtraction osteotomy (PSO) effectively corrects fixed sagittal plane deformity.
  • Significant perioperative morbidity is associated with PSO.
  • Optimizing surgical, anesthetic, and monitoring techniques is crucial.

Purpose of the Study:

  • To report the perioperative morbidity rate in patients undergoing PSO.
  • To identify common complications associated with PSO.
  • To discuss strategies for avoiding PSO-related complications.

Main Methods:

  • Retrospective study of 10 patients undergoing thoracolumbar PSO.
  • Patients treated at a single institution over 3 years.
  • Analysis of intraoperative and early postoperative complications.

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Main Results:

  • Two dural tears, one cardiovascular instability, and two coagulopathies occurred intraoperatively.
  • Postoperative complications included neurological deficit, wound infection, urinary tract infection, and delirium.
  • All patients recovered fully; no mortality was observed.

Conclusions:

  • PSO patients often have prior spine surgeries and comorbidities.
  • The perioperative morbidity risk for revision PSO exceeds 50%.
  • Effective complication-avoidance strategies are essential for PSO procedures.