II. Epidemiology

  1. PIP Joint is the most commonly dislocated finger joint

III. Mechanism

  1. Hyperextension injury most common
  2. Common injury in athletes

V. Complications

  1. General
    1. Risk of longterm stiffness
    2. Distal Phalanx Fracture
    3. Tendon Injury
  2. Dorsal PIP Dislocation (most common)
    1. Risk of Volar Plate Injury
  3. Volar PIP Dislocation (rare)
    1. Risk of Central slip rupture
    2. May result in Boutonniere Deformity

VI. Imaging: Finger XRay before and after reduction

  1. Exclude avulsion Fracture
  2. Reduction may be attempted on sideline without XRay

VII. Signs

  1. Grossly deformed digit

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