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Related Experiment Video

Updated: Jun 15, 2026

Structured Motor Rehabilitation After Selective Nerve Transfers
09:34

Structured Motor Rehabilitation After Selective Nerve Transfers

Published on: August 15, 2019

C5 palsy after cervical laminoplasty: a multicentre study.

S Imagama1, Y Matsuyama, Y Yukawa

  • 1Department of Orthopaedic Surgery, Nagoyal University Graduate School of Medicine, 65 Turumai, Showa-ku, Nagoya 466-8550, Japan. Imagama@med.nagoya-u.ac.jp

The Journal of Bone and Joint Surgery. British Volume
|March 2, 2010
PubMed
Summary

Cervical laminoplasty can lead to C5 palsy, a nerve root injury. This study found specific anatomical factors, like narrowed C5 foramen, increase risk, suggesting preventative surgical modifications.

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Area of Science:

  • Neurosurgery
  • Spinal Surgery
  • Orthopedics

Background:

  • Cervical laminoplasty is a common procedure for spinal stenosis.
  • Post-operative C5 palsy is a known complication, affecting deltoid and biceps function.
  • The exact cause and predisposing factors for C5 palsy remain under investigation.

Purpose of the Study:

  • To identify clinical and radiological predictors of C5 palsy after cervical laminoplasty.
  • To correlate anatomical variations with the development of C5 palsy.
  • To propose preventative strategies for C5 palsy.

Main Methods:

  • Retrospective review of 1858 patients undergoing cervical laminoplasty.
  • Comparison of radiological findings (CT, MRI) between patients with and without C5 palsy.

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Last Updated: Jun 15, 2026

Structured Motor Rehabilitation After Selective Nerve Transfers
09:34

Structured Motor Rehabilitation After Selective Nerve Transfers

Published on: August 15, 2019

  • Statistical analysis to determine significant differences in anatomical measurements.

    • Main Results:

    • 43 patients (2.3%) developed C5 palsy.
    • Patients with C5 palsy showed significantly narrower C5 intervertebral foramina on CT.
    • A larger C5 superior articular process and greater C4-5 spinal cord posterior shift on MRI were observed in the C5 palsy group.

    Conclusions:

    • Narrowed C5 intervertebral foramina and specific anatomical features are associated with post-operative C5 palsy.
    • This is the first study to directly correlate C5 nerve root impairment with C5 palsy.
    • Early foraminotomy and careful laminoplasty technique may prevent C5 palsy.