Musculoskeletal problems of the wrist and hand other diagnostic studies

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Other Diagnostic Studies

Nerve Conduction Studies

• Indicated if suspected median nerve compression
• Nerve conduction velocity (NCV) decreased in 70% of cases; high PPV, but sensitivity low

Positive Median Nerve Block/or Steroid Injection

• Can be used to confirm suspected diagnosis of CTS
• Simultaneous steroid injection is therapeutic as well as diagnostic
• Significant risk complications (nerve atrophy or necrosis): should only be performed by an expert