A "finger phantom" to train treatment of trigger finger using ultrasound guidance

(University of Alabama at Birmingham) Researchers have made a 3D-printed anatomical finger model, embedded in ballistic gelatin, as a low-cost ultrasound training phantom for procedural guidance of trigger finger injections. Though the finished product looks like a brick, the ultrasound image of the bones, ligament, tendons and the A1 annular pulley inside it appear anatomically and sonographically similar to images observed in a human finger, both pre- and post-injection. Ultrasound shows the a...