{
  "abstract": "Background\n\nPosterior migration of a mobile-bearing cervical disc replacement (CDR) can be catastrophic. The authors report a single-patient case of catastrophic failure after recent trauma and implant loosening.Observations\n\nA 48-year-old woman had received C5-6 and C6-7 Mobi-C CDRs at an outside institution 3 weeks before presentation and had sustained a ground-level fall 8 days before presentation. Outside imaging from after the fall showed implant loosening. After subsequently lifting a laundry basket, the patient developed acute quadriparesis with complete motor and sensory loss below C7. CT demonstrated catastrophic C5-6 and C6-7 hardware failure with posterior migration of the C6-7 polyethylene insert into the canal. Emergency revision C5-7 anterior cervical discectomy and fusion was performed, but she remained American Spinal Injury Association Impairment Scale grade A at the 1-year follow-up.Lessons\n\nPatients with recent trauma and radiographic evidence of loosening, posterior endplate translation, loss of endplate parallelism, or polyethylene core malposition should prompt urgent surgical evaluation and likely revision. https://thejns.org/doi/10.3171/CASE26740.",
  "abstract_shown": true,
  "affiliations": [
    "School of Medicine, University of California, Irvine.",
    "Department of Orthopaedic Surgery, University of California, Irvine, Orange, California.",
    "College of Medicine, Northeast Ohio Medical University, Rootstown, Ohio."
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 12,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Pirooz Fereydouni",
      "orcid": "0009-0006-2561-9370"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Arthur W Cowman",
      "orcid": "0009-0007-0444-1558"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Matthew J Strok",
      "orcid": "0009-0006-6918-3062"
    },
    {
      "affs": [
        1
      ],
      "name": "Sultan Baz"
    },
    {
      "affs": [
        1,
        2
      ],
      "name": "Shahabeddin Yazdanpanah"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Ryan Hoang"
    },
    {
      "affs": [
        1
      ],
      "name": "Michael S Kim",
      "orcid": "0000-0002-2532-5851"
    },
    {
      "affs": [
        1
      ],
      "name": "Sohaib Z Hashmi"
    },
    {
      "affs": [
        1
      ],
      "name": "Don Y Park",
      "orcid": "0000-0003-3575-2758"
    },
    {
      "affs": [
        1
      ],
      "name": "Nitin N Bhatia",
      "orcid": "0000-0001-7905-3305"
    },
    {
      "affs": [
        1
      ],
      "name": "Yu-Po Lee"
    },
    {
      "affs": [
        1
      ],
      "name": "Hao-Hua Wu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/f8skqzrjst9je.bib",
  "cited_by": 0,
  "doi": "10.3171/case26740",
  "fulltext_url": "https://europepmc.org/articles/PMC13681725",
  "id": "f8skqzrjst9je",
  "issns": [
    "2694-1902"
  ],
  "landing_url": "https://europepmc.org/article/MED/42896227",
  "language": "eng",
  "licence": "CC-BY-NC-ND",
  "licence_label": "CC BY-NC-ND",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2746|Cervical and Thoracic Myelopathy"
    ]
  ],
  "openalex": "W7221726642",
  "pdf_url": "https://europepmc.org/articles/PMC13681725?pdf=render",
  "pmcid": "PMC13681725",
  "pmid": "42896227",
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/f8skqzrjst9je.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:33Z",
      "native_id": "MED:42896227",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42896227"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2746|Cervical and Thoracic Myelopathy",
      "subfield": "surgery"
    }
  ],
  "title": "Early catastrophic posterior migration of a cervical disc replacement polyethylene insert resulting in complete spinal cord injury: illustrative case.",
  "title_text": "Early catastrophic posterior migration of a cervical disc replacement polyethylene insert resulting in complete spinal cord injury: illustrative case.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:19:33Z",
  "url": "https://research.draconitic.com/paper/f8skqzrjst9je",
  "venue": "Journal of neurosurgery. Case lessons",
  "versions": []
}