2018•Journal of Hand Surgery (European Volume)Requires access
Innervation of the interphalangeal joint of the thumb: anatomical study
Ezequiel Ernesto Zaidenberg, Dante Palumbo, Ezequiel Martínez, Martín José Pastrana, Efraín Farías Cisneros, Carlos Rodolfo Zaidenberg
Open publisher page 5 citations
Abstract
We dissected 30 cadaveric thumb interphalangeal joints to delineate the sensory nerve anatomy of its capsule. Four articular branches supplying the interphalangeal joint capsule of the thumb were found in all specimens. Ulnar and radial proper digital nerves provide one palmar capsular nerve branch on their respective sides. Of the two dorsal branches of the radial nerve at the dorsum of the thumb, we observed that each nerve provided one branch to the interphalangeal dorsal capsule. Our findings demonstrate a consistent pattern of innervation and may provide the anatomical basis to the treating surgeon for an effective and safe denervation of the interphalangeal joint of the thumb.