2022 AMI Online Salon

FDP tendon rupture (“jersey finger”)

Project Details

  • Entrant Name:  Shawna Duan
  • Client: UWorld
  • Copyright: UWorld, 2021
  • Medium/software used: ZBrush, Photoshop, Illustrator
  • Final presentation format: Web-based application
  • Primary Audience: Medical students

Project Description

The flexor digitorum profundus (FDP) tendon inserts into the base of the distal phalanx and flexes the distal interphalangeal (DIP) joint. This tendon can rupture when an actively flexed DIP joint is hyperextended, such as when an athlete grabs an opponent’s jersey and the opponent rapidly pulls away. The purpose of this illustration is to highlight the anatomy of the finger while demonstrating the forces that cause FDP rupture. The inset shows the anatomy of the injury and how an FDP rupture can present on diagnostic imaging. This illustration was created to supplement clinical vignette explanations about jersey finger for medical students studying for USMLE STEP 1.