Mallet finger is an injury of the fingertip in which the extension tendon is avulsed from which bone?

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Prepare for the Non-Systems NPTE Exam. Study with flashcards and multiple choice questions, each with hints and explanations. Achieve your exam success!

Multiple Choice

Mallet finger is an injury of the fingertip in which the extension tendon is avulsed from which bone?

Explanation:
Mallet finger occurs when the terminal extensor tendon is torn away from its insertion on the distal phalanx at the fingertip. This avulsion pulls the fingertip into flexion and prevents active extension of the DIP joint. The distal phalanx is the bone at the very tip of the finger where the extensor mechanism attaches, making it the correct site of avulsion. The other bones listed are not where this tendon attaches to cause this injury.

Mallet finger occurs when the terminal extensor tendon is torn away from its insertion on the distal phalanx at the fingertip. This avulsion pulls the fingertip into flexion and prevents active extension of the DIP joint. The distal phalanx is the bone at the very tip of the finger where the extensor mechanism attaches, making it the correct site of avulsion. The other bones listed are not where this tendon attaches to cause this injury.

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