The Journal of hand surgery
The Association Between Annular Pulley Morphology and Maximal Fingertip Force.
Daniel C Santana, Weston Ryan, Shelby Payne, Zachary C Lum, Christopher O Bayne
Published: 202610.1016/j.jhsa.2025.12.018
Abstract
PURPOSE: The digital pulley system enables efficient finger flexion. The A2 and A4 pulleys are biomechanically critical, with injury causing tendon bowstringing and impaired grip. Tendon-bone distance (TBD) is widely used as a surrogate for pulley in…
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