2021 AMI Online Salon

Persistent Trigger Finger Due to Tendon Subluxation

Project Details

  • Entrant Name:  Julia Lerner
  • Client: Loree K. Kalliainen, MD, MA, FACS; Lifespan Physician Group and Brown University
  • Copyright: Julia Lerner, 2020
  • Medium/software used: Digital pen & ink / Adobe illustrator
  • Final presentation format: Journal article; print and online
  • Primary Audience: Hand surgeons; plastic and orthopedic surgery residents


Project Description

These four spot illustrations accompany a paper which describes a technique for treating trigger finger, a condition in which a nodule on the flexor tendons become entrapped, locking the affected finger in flexion. Following release of the A1 pulley, as is typically indicated, the flexer digitorum superficialis (FDS, in teal) is divided to prevent its subluxation over the flexer digitorum profundus (FDP, in orange). The two illustrations on the left show the affected finger in extension and flexion before division of the FDS, in which the tendons slip off the FDP in flexion. The two illustrations on the right show the finger following division of the FDS, in which subluxation no longer occurs.