Purpose: We propose a standardized sonographic examination technique to evaluate the muscles of the hypothenar region and describe their normal sonographic appearance.
Methods: The hypothenar region was studied with sonography in 20 healthy volunteers using 5-12-MHz linear-array transducers. The assessment included dynamic testing.
Results: All hypothenar muscles could be identified in all subjects and their courses followed entirely. In addition, their function could be assessed by scanning during active and passive movements.
Conclusions: Knowledge of the normal sonographic anatomy of the hypothenar region is essential for evaluation of pathologic conditions.
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