Evaluation of the first annular pulley stretch effect under isometric contraction of the flexor tendon in healthy volunteers and trigger finger patients using ultrasonography

摘要

The block, which had a right-angled triangular prism shape and was made of ethylene-vinyl acetate copolymer resin, was used to maintain the finger position throughout the exercise. This fixation block was placed under the base of the proximal phalangeal bone of the middle finger, and the metacarpophalangeal joint was flexed at 45°