Finger drop

Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .

Finger drop. Posterior interosseous nerve (PIN) lesions, C7 radiculopathy, Ischaemic stroke. Fully referenced neurology checklist.

Causes of finger drop

  • Posterior interosseous nerve (PIN) lesions
  • C7 radiculopathy
  • Ischaemic stroke
  • Guillain Barre syndrome (GBS)
  • Acute motor axonal neuropathy (AMAN)

References

  1. McDonald SP, Smith MD. An uncommon cause of finger drop in a patient with rheumatoid arthritis. Ann Rheum Dis 1996; 55:728-730.
  2. Kaneko K, Taguchi T, Toyoda K, et al. Unilateral drop finger due to cervical spondylosis at the C6/7 intervertebral level. J Orthop Sci 2003; 8:616-620.
  3. Kobayashi M, Sonoo M, Shimizu T. Pure motor stroke with major involvement of the index finger. JNNP 2004; 75:507-508.
  4. Kim JS, Chung JP, Ha SW. Isolated weakness of index finger due to a small cortical infarction. Neurology 2002; 58:985-986.
  5. George A, Abdurehiman P, James J. "Finger drop sign" in Guillain-Barre syndrome. Neurology India 2009; 57:282-286.
  6. And 3 more. Subscribe to see the full list

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