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An irreducible closed dorsal dislocation of the distal interphalangeal (DIP) joint of the finger is a rare injury, often caused by factors such as the interposition of the volar plate, entrapment of the flexor digitorum profundus (FDP) tendon behind the head of the middle phalanx, or the buttonholing of the middle phalanx head through the volar plate or flexor tendon. This case report presents a rare instance of FDP avulsion combined with dorsal dislocation of the DIP joint in a 42-year-old male who sustained trauma to his right middle finger during a workplace accident. Clinical examination and imaging confirmed FDP avulsion along with dorsal dislocation of the DIP joint. Urgent surgical intervention was performed, successfully reducing and repairing the FDP tendon and stabilizing the DIP joint. Subsequent follow-up showed satisfactory functional outcomes. This case highlights the importance of prompt diagnosis and appropriate surgical management in treating complex finger injuries.
Solunke et al. (Mon,) studied this question.
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