Herpes myelitis after thoracic spine surgery.

Herpes simplex or herpes zoster reactivation after spinal surgery is rarely reported. This case report and review of the literature describes patients in whom this reactivation occurs to clarify the diagnosis and management. In addition to reporting their case, the authors reviewed case reports and series published between 1980 and 2012 found through a PubMed search. Herpes reactivation is generally confined to a vesicular rash that can be treated with acyclovir. However, occasional dissemination has occurred and has led to myelitis or encephalitis. Atypical presentations led to delays in diagnosis, delayed treatment, and poor neurological outcome. While rare, herpes simplex or herpes zoster reactivation is a complication of spine surgery that must be considered in the face of new-onset focal neurological symptoms in a dermatome pattern without a structural cause, even without a rash.