Skip to content
DraconiticResearch
Search Sources API
203,948 studies31 sourcesUpdated 10 min ago
Peer-reviewedCC BY-NC-NDJournal of neurosurgery. Case lessons

Early catastrophic posterior migration of a cervical disc replacement polyethylene insert resulting in complete spinal cord injury: illustrative case.

  • Pirooz Fereydouni1,2
  • Arthur W Cowman1,2
  • Matthew J Strok1,2
  • Sultan Baz2
  • Shahabeddin Yazdanpanah2,3
  • Ryan Hoang1,2
  • Michael S Kim2
  • Sohaib Z Hashmi2
  • Don Y Park2
  • Nitin N Bhatia2
  • Yu-Po Lee2
  • Hao-Hua Wu2
  1. 1School of Medicine, University of California, Irvine.
  2. 2Department of Orthopaedic Surgery, University of California, Irvine, Orange, California.
  3. 3College of Medicine, Northeast Ohio Medical University, Rootstown, Ohio.
Read full textPDFDOICite

Abstract

Background

Posterior 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

A 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

Patients 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.

Related

  1. Catastrophic acetabular wear following polyethylene liner dissociation with locking-tab damage after total hip arthroplasty: a case report
    Weida Li, Zhixing Liang, Zhuangzhuang Dong +2
    Frontiers in SurgeryPeer-reviewedCC BYFull textSurgery & anaesthesiaDOAJEurope PMC
  2. Giant Posterior Fossa Tuberculoma Mimicking Atypical Teratoid/Rhabdoid Tumor in a Child: Illustrative Case
    Aamir Hussain Hela, Romana Makhdoomi, Nayil Khursheed +5
    Clinical Case ReportsPeer-reviewedCC BYFull textSurgery & anaesthesiaDOAJ
  3. Posterior neo-annular reconstruction: An alternative approach to mitral valve replacement for caseous mitral annular calcification
    Nika Samadzadeh Tabrizi, Shawn Shah, Gösta B. Pettersson +5
    JTCVS techniquesPeer-reviewedCC BYFull textGeneral medicineEurope PMC
  4. The Effects of Estrogen-Based Hormone Replacement Therapy on Women Aged ≥55 Years Undergoing 1- to 3-Level Posterior Lumbar Spinal Fusion Surgery
    Andrea H. Johnson, Jane C. Brennan, Matthew A. Peterman +2
    International Journal of Spine SurgeryPeer-reviewedLicence not statedFull textSurgery & anaesthesiaPMC
  5. A set of complications during percutaneous valve-in-valve replacement: Coronary occlusion, device migration, surgical rescue, and mechanical support.
    Catarina Relvas Novo, Mariana Campos, Belisa Gomes +4
    JTCVS structural and endovascularPeer-reviewedCC BYFull textCardiovascular medicineEurope PMC

Cite

BibTeXRIS
BibTeX
@article{fereydouni2026early,
  title = {{Early catastrophic posterior migration of a cervical disc replacement polyethylene insert resulting in complete spinal cord injury: illustrative case.}},
  author = {Pirooz Fereydouni and Arthur W Cowman and Matthew J Strok and Sultan Baz and Shahabeddin Yazdanpanah and Ryan Hoang and Michael S Kim and Sohaib Z Hashmi and Don Y Park and Nitin N Bhatia and Yu-Po Lee and Hao-Hua Wu},
  journal = {Journal of neurosurgery. Case lessons},
  year = {2026},
  month = oct,
  doi = {10.3171/case26740},
  url = {https://europepmc.org/article/MED/42896227},
  note = {CC BY-NC-ND},
}
RIS
TY  - JOUR
TI  - Early catastrophic posterior migration of a cervical disc replacement polyethylene insert resulting in complete spinal cord injury: illustrative case.
AU  - Pirooz Fereydouni
AU  - Arthur W Cowman
AU  - Matthew J Strok
AU  - Sultan Baz
AU  - Shahabeddin Yazdanpanah
AU  - Ryan Hoang
AU  - Michael S Kim
AU  - Sohaib Z Hashmi
AU  - Don Y Park
AU  - Nitin N Bhatia
AU  - Yu-Po Lee
AU  - Hao-Hua Wu
PY  - 2026
DA  - 2026/10/19
JO  - Journal of neurosurgery. Case lessons
DO  - 10.3171/case26740
UR  - https://europepmc.org/article/MED/42896227
AB  - Background  Posterior 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  A 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  Patients 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.
SN  - 2694-1902
ER  -