injuries poisoning
Flexor Digitorum Profundus (FDP) Avulsion
Diagnosis of Jersey Finger
X-ray X-rays are needed to rule out an avulsion fracture of the distal phalanx. Active flexion of the affected distal interphalangeal (DIP) joint must be done or the diagnosis can be easily missed. Test active DIP joint flexion in contact sport athletes who have unexplained pain at the DIP joint, particularly if the resting position is in extension. 