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Mallet Finger Updated 4/2010

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BASICS

  • Description
  • General Prevention
  • Epidemiology
  • Etiology

DIAGNOSIS

  • Signs and Symptoms
  • Tests
  • Differential Diagnosis

TREATMENT

  • General Measures
  • Special Therapy
  • Surgery

Ongoing Care

  • Prognosis
  • Complications
  • Patient Monitoring
The following is an excerpt....
BASICS
Description
  • Mallet finger is a loss of continuity of the conjoined lateral bands at the DIP joint of the finger that results in a characteristic flexion deformity of the distal joint.
  • Mallet finger deformity resulting from the fracture of a child’s distal phalanx usually is a transepiphyseal fracture of the phalanx.
  • Classification (1) is used as an aid in establishing an appropriate treatment plan.
    • Type I (most common): Closed or blunt trauma with loss of tendon continuity with or without a small avulsion fracture
    • Type II: Laceration at or proximal to the DIP joint with loss of tendon continuity
    • Type III: Deep abrasion with loss of skin, subcutaneous cover, and tendon substance
    • Type IV:
      • a: Transepiphyseal plate fracture ...

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