Tendon and nerve excursion in the carpal tunnel in healthy and CTD wrists.

Background: During hand and finger motions, friction between flexor digitorum superficialis tendon and the median nerve is thought to play a role in the development of cumulative trauma disorders. This study investigated three methods to determine excursions of the flexor digitorum superficialis tendon and median nerve using several motions.

Methods: Twenty-five participants (mean age 37.