Cervical spondylotic amyotrophy (CSA)

Evidence-based neurology checklist on cervical spondylotic amyotrophy (csa): Pathogenesis This is isolated lower motor neurone weakness caused by spinal cord compression It is due to selective degeneration of the anterior horn cells from vascular insufficiency It may also arise from isolated…

Pathogenesis

  • This is isolated lower motor neurone weakness caused by spinal cord compression
  • It is due to selective degeneration of the anterior horn cells from vascular insufficiency
  • It may also arise from isolated compression of the motor nerve roots

Proximal type

Distal type

Clinical features

Examination signs

Magnetic resonance imaging (MRI) spine: features

Electromyogram (EMG): features

Differential diagnosis

Surgical treatment

References

  1. Jiang SD, Jiang LS, Dai LY. Cervical spondylotic amyotrophy. Eur Spine J 2011; 20:351-357.
  2. Ahdab R, Créange A, Benaderette S, Lefaucheur JP. Cervical spondylotic amyotrophy presenting as dropped head syndrome. Clin Neurol Neurosurg 2009; 111:874-876.
  3. Taniguchi S, Takahashi H, Aoki Y, et al. Surgical treatment for dropped head syndrome with cervical spondylotic amyotrophy: a case report. BMC Res Notes 2018; 11:500.
  4. Gebere-Michael SG, Johnston JC, Metaferia GZ, Wuhib MZ, Fernandez HH. Bilaterally symmetric cervical spondylotic amyotrophy: a novel presentation and review of the literature. J Neurol Sci 2010; 290:142-145.
  5. Isobe T, Yaguchi H, Matsui K, Inoue K. A case of cervical spondylotic amyotrophy resembling post-polio syndrome. Rinsho Shinkeigaku 2006; 46:59-61.
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