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Modified classification of spinal cord vascular lesions
Robert F Spetzler1, Paul W Detwiler, Howard A Riina
1Division of Neurological Surgery, Barrow Neurological Institute, St Joseph's Hospital and Medical Center, Phoenix, Arizona 85013-4496, USA. neuropub@chw.edu
Journal of Neurosurgery
|November 27, 2002
Summary
This study proposes a new classification for spinal vascular lesions, categorizing them into neoplasms, aneurysms, and arteriovenous lesions. This system clarifies terminology and guides treatment for spinal cord vascular malformations.
Area of Science:
- Neurosurgery
- Vascular Neurology
- Medical Classification Systems
Background:
- The existing literature on spinal vascular malformations suffers from inconsistent and confusing terminology.
- Previous classifications do not adequately address the diversity of spinal cord vascular lesions.
Purpose of the Study:
- To propose a modified, comprehensive classification system for spinal cord vascular lesions.
- To reduce confusion in terminology and improve treatment guidance.
Main Methods:
- Review of relevant literature on spinal vascular lesions.
- Analysis of clinical experience with over 130 spinal cord vascular lesions.
- Development of a new classification based on pathophysiology, neuroimaging, and neuroanatomy.
Main Results:
- A revised classification system is proposed, dividing lesions into neoplasms, aneurysms, and arteriovenous lesions.
- Arteriovenous lesions are further categorized into fistulas and malformations (AVMs) with detailed sub-classifications.
- The system incorporates neoplastic lesions (hemangioblastomas, cavernous malformations), spinal aneurysms, and various types of spinal AVMs including a new category for conus medullaris AVMs.
Conclusions:
- The modified classification system encompasses all surgical spinal vascular lesions.
- It provides a framework for treatment decisions by considering lesion location and pathophysiology.
- This system aims to resolve the ambiguity caused by numerous disparate nomenclatural terms in the current literature.