What are the features of radiculopathy at nerve levels C5 through C8?

Updated: Oct 08, 2018
  • Author: Gerard A Malanga, MD; Chief Editor: Sherwin SW Ho, MD  more...
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Answer

Radiculopathies by nerve level:

  • C5 radiculopathy

  • - Weakness: shoulder abduction
  • - Test: Have patients hold their shoulders in abduction, against downward force by the examiner.
  • C6 radiculopathy

  • - Weakness: elbow flexion, wrist extension
  • - Test: Have patients lift their arm against resistance by the examiner.
  • C7 radiculopathy

  • - Weakness: elbow extension, wrist flexion
  • - Test: Have patients push with their arm away from their chest against resistance by the examiner.
  • C8 radiculopathy

  • - Weakness: thumb extension, wrist ulnar deviation
  • - Test: Have the patients hold their extended fingers together against the examiner's attempts to open the fingers.

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