Surgical approach to benign extradural lesions of the thoracic spine

A benign epidural lesion in the thoracic spine is rare, and usually the result of intervertebral disc herniation or infection. Not long ago patients were diagnosed late in the course of their disease and the surgical results of the standard laminectomy usually performed were grave. The development of newer imaging techniques (CT and MRI) has made diagnosis much easier, so diagnosis is often earlier, when neurological deficit is minimal. Newer neurosurgical techniques and approaches to the thoracic spoine have been developed to treat these lesions, which we describe. Clinical data on 16 patients operated from January 1996 to January 1997 are presented.