Intrinsic Hand Deformity Workup

Updated: Feb 03, 2020
  • Author: Dimitrios Danikas, MD, FACS; Chief Editor: Harris Gellman, MD  more...
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Workup

Imaging Studies

Routine radiographs are indicated to reveal bone or joint pathology.

Magnetic resonance neurography (MRN) and ultrasonography (US) may be useful for diagnosing and evaluating peripheral nerve pathology, including trauma. [17]

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Other Tests

Other tests that may be helpful include the following:

  • Grip-strength dynamometry - An adjustable grip size reveals the contribution to grip strength by the intrinsic muscles; large-handle positions are used to test extrinsic flexor power, and smaller-handle positions test the intrinsic muscles
  • Pinch gauge - This can be used to test the adductor pollicis and first dorsal interosseous muscles
  • Electrodiagnostic studies - Absence of normal intrinsic electrical activity is evidence of muscle pathology; a neurologic etiology can be differentiated from muscle pathology
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