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Functional neurological outcome of spinal cavernous malformation surgery
Laurèl Rauschenbach1,2, Alejandro N Santos3,4, Adrian Engel3,4
1Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany. laurel.rauschenbach@uk-essen.de.
Summary
Early surgical intervention for spinal cavernous malformations (SCM) within 3 months of intramedullary hemorrhage (IMH) improves outcomes. Ventral SCM location and incomplete resection are associated with unfavorable results.
Area of Science:
- Neurosurgery
- Neurology
- Spinal Surgery
Background:
- Spinal cavernous malformations (SCM) pose a risk of intramedullary hemorrhage (IMH), potentially leading to severe neurological deficits.
- Optimal surgical timing and patient selection for SCM remain undefined.
Purpose of the Study:
- To evaluate the impact of surgical timing on functional outcomes in patients with spinal cavernous malformations.
- To identify factors associated with unfavorable outcomes after SCM surgery.
Main Methods:
- Observational study of 35 SCM patients undergoing surgery between 2003 and 2021.
- Inclusion criteria: baseline clinical data, MRI, and follow-up.
- Functional outcomes assessed using the Modified McCormick scale.
Main Results:
- Unfavorable outcomes linked to multiple bleeding events, ventral SCM location, and incomplete resection.
- Time from IMH to surgery correlated with postoperative outcomes (p=.004).
- Early surgery (within 3 months of IMH) associated with favorable outcomes (p=.033), confirmed by multivariate analysis (p=.041).
Conclusions:
- Symptomatic SCM removal is recommended within 3 months post-IMH if gross total resection is achievable.
- Ventral SCM location may increase the risk of postoperative deficits.
