Proximal interphalangeal joint dislocation - 3rd finger

Case contributed by Leonardo Lustosa
Diagnosis certain

Presentation

Direct hit of a football to the fingertips. Obvious deformity upon physical examination.

Patient Data

Age: 50 years
Gender: Male

Hand radiograph confirmed the suspected dislocation of the proximal interphalangeal joint (PIP) of the 3rd finger. The dislocation can be classified as a type II dorsal dislocation (bayonet). No fractures are seen.

Case Discussion

Dorsal proximal interphalangeal joint dislocations are usually the result of a hyperextension mechanism.

Plain radiographs are often sufficient to diagnose a PIP joint dislocation, but it is important to study the digit with proper frontal and lateral radiographs, which unfortunately were not performed in this case. Hand radiographs alone may miss more subtle fractures and/or dislocations of a digit.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.