{
  "abstract": "Background\n\nNeurological complications following spinal anesthesia are uncommon. However, intramedullary conus hematomas may occur in patients undergoing epidural and spinal anesthesia with undocumented tethered cords, occult spinal dysraphism (OSD), and/or an abnormally low-lying conus medullaris.Case description\n\nA 28-year-old female developed a progressive left foot drop and urinary retention immediately after spinal anesthesia (i.e., lower-segment cesarean section). She had 2 findings consistent with an underlying dysraphic anomaly: a shaved lumbosacral patch/congenital tuft of hair and a longstanding pes cavus deformity. The magnetic resonance scan demonstrated a Type II split cord malformation with a tethered cord terminating at the L5 level. In addition, the spinal anesthetic caused a focal intramedullary conus hematoma. We elected to treat her nonsurgically, and 3 months later, with physical therapy (i.e., ankle-foot orthosis and bladder training), she progressively improved neurologically.Conclusion\n\nRecognition of OSD/low-lying conus before spinal anesthesia would have avoided causing an intramedullary conus hematoma in this patient.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Neurosurgery & Gamma Knife, All India Institute of Medical Sciences & Jai Prakash Narayan Apex Trauma Centre, New Delhi, India."
  ],
  "article_type": "case report",
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Amartya Sengupta"
    },
    {
      "affs": [
        0
      ],
      "name": "Chirag Bansal"
    },
    {
      "affs": [
        0
      ],
      "name": "Ramesh S Doddamani"
    },
    {
      "affs": [
        0
      ],
      "name": "Hanok Srithej Rayappa"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9dvgm5r767s20.bib",
  "cited_by": 0,
  "doi": "10.25259/sni_811_2026",
  "fulltext_url": "https://europepmc.org/articles/PMC13726968",
  "id": "9dvgm5r767s20",
  "issns": [
    "2229-5097",
    "2152-7806"
  ],
  "landing_url": "https://europepmc.org/article/MED/42974591",
  "language": "eng",
  "licence": "CC-BY-NC-SA",
  "licence_label": "CC BY-NC-SA",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Case Report"
    ],
    [
      "openalex",
      "2746|Spinal Hematomas and Complications"
    ]
  ],
  "openalex": "W7224887214",
  "pdf_url": "https://europepmc.org/articles/PMC13726968?pdf=render",
  "pmcid": "PMC13726968",
  "pmid": "42974591",
  "published": "2026-10-30",
  "publisher": "Scientific Scholar",
  "ris": "https://research.draconitic.com/paper/9dvgm5r767s20.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T15:20:47Z",
      "native_id": "MED:42974591",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42974591"
    },
    {
      "first_seen": "2026-11-05T12:23:11Z",
      "native_id": "PMC13726968",
      "source": "pmc",
      "url": "https://doi.org/10.25259/sni_811_2026"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2746|Spinal Hematomas and Complications",
      "subfield": "surgery"
    }
  ],
  "title": "Conus hematoma following spinal anesthesia in an unrecognized case of occult spinal dysraphism: Lessons from a rare but preventable iatrogenic injury.",
  "title_text": "Conus hematoma following spinal anesthesia in an unrecognized case of occult spinal dysraphism: Lessons from a rare but preventable iatrogenic injury.",
  "type": "peer-reviewed",
  "updated_at": "2026-11-06T12:22:47Z",
  "url": "https://research.draconitic.com/paper/9dvgm5r767s20",
  "venue": "Surgical neurology international",
  "versions": []
}