Volar plate avulsion injury

Case contributed by Dr Bahman Rasuli

Presentation

Hyperextention injury to his middle finger while playing football.

Patient Data

Age: 30 years
Gender: Male
MRI

A bony fragment detached from the middle finger middle phalanx base in the volar side

Intraarticular extension of the fracture into the PIP joint causing joint effusion and capsular distension

Associated bone marrow edema/bruise also at the site of fracture.

Case Discussion

Hyperextension injury involving the PIP of the finger can avulse the volar plate which is commonly associated with a volar avulsion fracture at the base of the middle phalanx.

When the volar avulsion fracture involves a significant portion of the articular surface, instability and dorsal dislocation of the middle phalanx can occur. 

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