Abstract
One hundred digital nerves from 10 cadaver hands were dissected, and branching patterns were analyzed. Contrary to the traditional belief that the digital nerve predictably trifurcates at the distal interphalangeal crease, much variation exists. Terminal branching occurred distal to the crease in 60% of the thumb digital nerves and in 78% of the digital nerves supplying the other four digits. The number of terminal branches also varied from two to seven in the thumb and from two to five in the other four digits. No significant differences were seen in branching patterns between digits or between radial and ulnar sides. These findings are clinically relevant to the surgeon who is contemplating digital nerve repair.
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