Innervation of the interphalangeal joint of the thumb: anatomical study

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.

The Role of the Peripheral Nerve Surgeon in the Treatment of Pain

“…Consequently, the role of physical therapy to evaluate and treat posture-related extremity pain is critical and physicians that treat pain should not hesitate to refer patients with pain to physical and/or occupational therapy. Additionally, joint denervation is one treatment option in the algorithm for the management of arthritic pain [14][15][16][17][18][19].…”