title: Utility of Discography as a Preoperative Diagnostic Tool for Intradural Lumbar Disc Herniation.
abstract: Preoperative definitive diagnosis of intradural lumbar disc herniation (ILDH) is difficult despite the availability of various neuroradiological investigative tools. We present a case of ILDH diagnosed preoperatively by discography and computed tomography-discography (disco-CT).The patient was a 63-year-old man with acute excruciating right leg pain. Discography and disco-CT demonstrated leakage of the contrast medium into the intradural space. Based on these findings, a right L5 nerve root disturbance caused by ILDH was diagnosed. A right L5 hemi-laminectomy and a dorsal durotomy were performed. The herniated disc was carefully dissected and then completely removed. Three months after surgery, the patient had fully recovered. This report highlights the importance of making a definitive diagnosis of ILDH preoperatively for better surgical planning and improved clinical outcomes. Furthermore, discography and disco-CT are both useful preoperative diagnostic tools for the diagnosis of ILDH.
authors: Department of Orthopaedic Surgery, Osaka Rosai Hospital, Osaka, Japan.
authors: Tomiya
authors: T
authors: Matsumoto
authors: Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
authors: Hiromitsu
authors: H
authors: Toyoda
authors: Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
authors: Hidetomi
authors: H
authors: Terai
authors: Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
authors: Sho
authors: S
authors: Dohzono
authors: Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
authors: Yusuke
authors: Y
authors: Hori
authors: Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan.
authors: Hiroaki
authors: H
authors: Nakamura
keywords: Discography; Intradural lumbar disc herniation; Preoperative diagnosis