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Idiopathic dorsal spinal cord herniation perforating the lamina: a case report and review of the literature

  • Case Report - Spine - Other
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Abstract

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.

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Authors and Affiliations

  1. Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare (IUHW), 852 Hatakeda, Narita City, Chiba, 286-0124, Japan

    Haruki Funao, Kenshi Daimon, Norihiro Isogai, Yutaka Sasao, Makoto Nishiyama, Shigeto Ebata & Ken Ishii

  2. 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

    Haruki Funao, Kenshi Daimon, Shigeto Ebata & Ken Ishii

  3. Department of Orthopaedic Surgery, Spine and Spinal Cord Center, International University of Health and Welfare (IUHW) Mita Hospital, 1-4-3 Mita, Minato-ku, Tokyo, 108-8329, Japan

    Haruki Funao, Norihiro Isogai, Yutaka Sasao, Makoto Nishiyama & Ken Ishii

  4. Department of Neurosurgery, Isehara Kyodo Hospital, 345 Tanaka, Isehara City, Kanagawa Prefecture, 259-1187, Japan

    Satoshi Nakamura

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  1. Haruki Funao
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  2. Satoshi Nakamura
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  3. Kenshi Daimon
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  4. Norihiro Isogai
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  5. Yutaka Sasao
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  7. Shigeto Ebata
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  8. Ken Ishii
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Correspondence to Haruki Funao.

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Funao, H., Nakamura, S., Daimon, K. et al. Idiopathic dorsal spinal cord herniation perforating the lamina: a case report and review of the literature. Acta Neurochir 163, 2313–2318 (2021). https://doi.org/10.1007/s00701-021-04804-4

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  • DOI: https://doi.org/10.1007/s00701-021-04804-4

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