Mallet finger

Case contributed by Mohammad Osama Hussein Yonso
Diagnosis certain


Pain and swelling at the right ring finger for 3 days after a history of fall landing on his fingers. On examination: no wound, mild swelling, hotness, and tenderness with deformity at the distal interphalangeal joint.

Patient Data

Age: 30 years
Gender: Male

Avulsed fracture at the base of the distal phalanx of the right ring finger with intraarticular (DIP) extension.

Soft tissue swelling.

Case Discussion

Mallet finger refers to damage in the extensor movement of the distal phalanx of the finger, either as a result of injury to the extensor tendon or due to an avulsion fracture at the base of the distal phalanx with dorsal displacement, resulting in the shape of a hammer-like finger.

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