Perioperative complications in primary intramedullary tumors of the spine in adults. A multicenter surveillance study of 307 patients from the German Spine Registry (DWG-Register)

Medullary tumors are a rare entity with a relative high complication rate (20%). Improvement of symptoms postoperative depends on several factors such as operated level, masculine gender, a long clinical history, presence of epidural hemorrhage, blood transfusion, and surgery on a recurrent tumor. In rare pathologies such as intramedullary tumors, the data from the DWG Register can be used to describe spinal surgery care in "real life."