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Updated: Aug 7, 2026
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Contrast Enhanced Ultrasound Imaging for Assessment of Spinal Cord Blood Flow in Experimental Spinal Cord Injury
Published on: May 7, 2015
Spinal cord infarction: etiology and outcome
W P Cheshire1, C C Santos, E W Massey
1Department of Neurology, University of North Carolina, Chapel Hill, USA.
Neurology
|August 1, 1996
Summary
Spinal cord ischemia and infarction have diverse causes, with motor function recovery often limited. Early improvement and preserved hip/knee strength predict better outcomes, challenging the traditional watershed zone theory.
Area of Science:
- Neurology
- Vascular Surgery
- Spinal Cord Medicine
Background:
- Spinal cord ischemia and infarction are serious neurological events.
- Etiologies are varied, impacting clinical presentation and prognosis.
- Understanding recovery patterns and prognostic factors is crucial for patient management.
Purpose of the Study:
- To review the diverse etiologies of spinal cord ischemia and infarction.
- To analyze factors influencing motor function recovery and ambulatory outcomes.
- To evaluate the proposed midthoracic watershed zone of ischemic vulnerability.
Main Methods:
- Retrospective review of 44 cases of spinal cord ischemia/infarction.
- Analysis of patient data including etiology, neurological deficits, and functional outcomes.
- Correlation of initial presentation and recovery patterns with long-term prognosis.
Main Results:
- Diverse etiologies identified, including aortic pathologies, embolism, and vascular malformations.
- Motor function improved in 12 patients, with substantial recovery in only one, primarily within 2-4 weeks.
- Favorable outcomes correlated with improving neurological exams and preserved hip abductor/knee extensor strength.
- Mean deficit level at T-8, challenging the classical T-4 watershed zone theory.
Conclusions:
- Spinal cord ischemia/infarction result from a wide range of vascular and non-vascular causes.
- Recovery is often limited, with early signs of improvement and preserved key muscle strength being critical prognostic indicators.
- The study disputes the existence of a specific midthoracic watershed zone, suggesting a different pattern of vulnerability.
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