Neuraxial Blockade in Patients with Preexisting Spinal Stenosis, Lumbar Disk Disease, or Prior Spine Surgery: Efficacy and Neurologic Complications

"CONCLUSIONS: We conclude that patients with preexisting spinal canal pathology have a higher

incidence of neurologic complications after neuraxial blockade (1.1%; 95% CI 0.5%–2.0%) than that

previously reported for patients without such underlying pathology. However, in the absence of a

control group of surgical patients with similar anatomic pathology undergoing general anesthesia, we

cannot determine whether the higher incidence of neurologic injury is secondary to the surgical

procedure, the anesthetic technique, the natural history of spinal pathology, or a combination of

factors and the relative contributions of each. (Anesth Analg 2010;111:1511–9)"

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