Funao Haruki, Nakamura Satoshi, Daimon Kenshi, Isogai Norihiro, Sasao Yutaka, Nishiyama Makoto, Ebata Shigeto, Ishii Ken
Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare (IUHW), 852 Hatakeda, Narita City, Chiba, 286-0124, Japan.
Department of Orthopaedic Surgery, Spine and Spinal Cord Center, International University of Health and Welfare (IUHW) Narita Hospital, 852 Hatakeda, Narita City, Chiba, 286-0124, Japan.
Acta Neurochir (Wien). 2021 Aug;163(8):2313-2318. doi: 10.1007/s00701-021-04804-4. Epub 2021 Mar 21.
Spinal cord herniation (SCH) is a rare condition associated with tethering of the spinal cord at the ventral dural defect. Idiopathic dorsal spinal cord herniation (IDSCH) is an extremely rare clinical entity. Here, we report the first case of IDSCH perforating the lamina in a patient with a history of ossification of the ligamentum flavum and diffuse idiopathic skeletal hyperostosis. Untethering of the spinal cord was performed by removing the surrounded ossified dura. Although urological symptoms and impaired proprioception remained, progressive neurological deterioration was prevented. Because this disease condition is extremely rare, it should be differentiated from ventral SCH.
脊髓疝（SCH）是一种罕见的疾病，与脊髓在腹侧硬脊膜缺损处的栓系有关。特发性背侧脊髓疝（IDSCH）是一种极其罕见的临床病症。在此，我们报告首例患有黄韧带骨化和弥漫性特发性骨肥厚病史的患者出现IDSCH穿破椎板的病例。通过切除周围骨化的硬脊膜来松解脊髓。虽然泌尿症状和本体感觉受损仍然存在，但阻止了神经功能的进行性恶化。由于这种疾病极其罕见，应与腹侧SCH相鉴别。
