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Related Experiment Videos

Paraplegia resulting from vessel ligation

R B Winter1, J E Lonstein, F Denis

  • 1Minnesota Spine Center, Minneapolis, USA.

Spine
|May 15, 1996
PubMed
Summary

Segmental vessel ligation during anterior spinal surgery carries virtually no risk of paraplegia when specific conditions are met. This study found no paralysis cases in 1197 patients, suggesting safety under optimal surgical circumstances.

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Area of Science:

  • Neurosurgery
  • Spinal Surgery
  • Vascular Surgery

Background:

  • The risk of paraplegia from segmental vessel ligation in anterior spinal surgery is often mentioned but not quantified.
  • Previous literature lacks precise data on the incidence and contributing factors of this complication.

Purpose of the Study:

  • To determine the exact risk rate of paraplegia following segmental vessel ligation.
  • To identify potential risk factors associated with this surgical complication.

Main Methods:

  • Retrospective review of clinical records for 1197 consecutive patients undergoing anterior spinal surgery (T1-L3) between 1967 and 1991.
  • Independent review by two surgeons not involved in the patient's care.

Main Results:

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  • No instances of paraplegia were recorded in the reviewed patient cohort.
  • The study found zero cases of paralysis attributed to segmental vessel ligation.

Conclusions:

  • Segmental vessel ligation is associated with minimal risk of paraplegia under specific conditions: unilateral ligation, on the scoliosis convexity, at the midvertebral body level, and avoiding hypotensive anesthesia.
  • Routine use of soft clamping and somatosensory-evoked potential monitoring may not be justified given the low risk profile.