Executive Editor: Chris Colton

Authors: Renato Fricker, Matej Kastelec, Fiesky Nuñez, Terry Axelrod

Thumb - Distal phalanx: Base - Dislocation

General considerations

The majority of these uncommon injuries are caused by a longitudinal blow to the tip of the finger.

Typically, hyperextension of the finger causes dorsal, or, rarely, palmar dislocation.
In both cases, disruptions of the collateral ligaments and the volar plate will be present.
In palmar dislocations, there will be an additional terminal extensor tendon disinsertion.

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v1.0 2008-11-08