Anaerobic spondylodiscitis: case series and systematic review.

Background: Bacterial spondylodiscitis is rarely caused by anaerobic organisms. We describe two patients with lumbar vertebral osteomyelitis and discitis caused by anaerobic bacteria, including an unusual occurrence after an endodontic procedure, and review the salient clinical features and outcomes of 31 previously reported cases.

Methods: Case reports and review of the literature.