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The sensory distribution in the dorsum of the hand: anatomical study with clinical implications

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Abstract

The sensory distribution in the dorsum of the hand was investigated in 150 formalin-fixed hands with the aim of outlining the most common innervation pattern of the superficial branch of the radial nerve (SBRN), dorsal branch of the ulnar nerve (DBUN) and the lateral antebrachial cutaneous nerve (LABCN). Although variable, the most common pattern found was SBRN innervation to the dorsal surface of the lateral 2½ digits and DBUN innervation to the dorsal surface of the medial 2½ digits. Dual innervation due to communicating branches or nerves overlapping was found in 41 cases. All-radial supply to the dorsum of the hand was found in ten cases. The LABCN was closely associated, and occasionally overlapped, with the SBRN. There were significant differences in the sensory distribution of the dorsum of the right and left hands of the same cadaver. The sensory distribution in the dorsum of the hand is variable; however, understanding the most common innervation pattern and appreciating the possible variations to this pattern is important to avoid errors in interpretation of conduction velocity studies, misdiagnosis of nerve pathology signs and symptoms and inappropriate treatments.

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Acknowledgments

The authors would like to thank the donors and their families.

Conflict of interest

All named authors hereby declare that they have no conflicts of interest to disclose.

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Authors and Affiliations

  1. Centre for Anatomy and Human Identification, University of Dundee, Dow Street, Dundee, DD1 5EH, UK

    Sara Sulaiman, Roger Soames & Clare Lamb

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  1. Sara Sulaiman
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  2. Roger Soames
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  3. Clare Lamb
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Correspondence to Roger Soames.

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Sulaiman, S., Soames, R. & Lamb, C. The sensory distribution in the dorsum of the hand: anatomical study with clinical implications. Surg Radiol Anat 37, 779–785 (2015). https://doi.org/10.1007/s00276-014-1416-1

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  • DOI: https://doi.org/10.1007/s00276-014-1416-1

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