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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
True regarding mallet finger is which of the following-
assistant
The correct answer is  Ans. is 'b' i.e., Avulsion of extensor tendon at the base of the distal phalanx o Mallet finger is avulsion of extensor tendon from distal phalanx of a finger.Mallet finger (Baseball finger)o Sudden passive flexion of the distal interphalangeal joint (as by a ball striking the tip of the finger) may rupture the extensor tendon at the point of its insertion into the base of distal phalanxo Sometimes, a fragment of bone is avulsed from the phalanx.o Clinically, distal phalanx is in slight flexion and patient is unable to extend DIP joint fully.o Treatment is by immobilizing the DIP joint in hyperextension with the help of an aluminium splint (finger extension splint) or plaster cast.