Proximal interphalangeal joint dislocation

Case contributed by Dr Victoria Ho


Right ring finger pain post fall with obvious deformity.

Patient Data

Age: 50 - 55
Gender: Female

Medial dislocation of the ring finger PIP joint with marked medial angulation.

No obvious fracture seen. 

Incidental bone island in the head of the 5th metacarpal.


Post reduction X ray

Normal alignment following reduction. 

A small crescent of cortical bone representing an avulsion fracture off the medial condyle of the proximal phalanx is displaced slightly medially.

Case Discussion

Interphalangeal joint dislocation is often caused by direct blow to the end of finger. 

X ray post reduction is performed to confirm proper alignment of the bone and to diagnose associated fractures. 

In this case, the fracture is occult on the initial radiograph.

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Case information

rID: 46076
Published: 24th Jun 2016
Last edited: 24th Jun 2016
Inclusion in quiz mode: Included

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