Finger injuries
Closed tendon injuries
Jersey finger
- Affected tendon: flexor digitorum profundus (FDP); most commonly in the ring finger
- Mechanism of injury
- Sudden hyperextension of a flexed DIP joint (forced extension) → avulsion fracture and/or rupture of the FDP tendon at the insertion
- Often seen when athletes grab an opponent's jersey
- Sudden hyperextension of a flexed DIP joint (forced extension) → avulsion fracture and/or rupture of the FDP tendon at the insertion
- Clinical features
- Pain, swelling of the DIP joint (palmar aspect)
- Extension of the DIP joint at rest
- Inability to flex the DIP joint