Mallet Finger with Subluxated Joint

A patient presented approximately 3 weeks after sustaining a bony mallet injury with a large dorsal articular fragment and subluxation of the distal interphalangeal (DIP) joint. Given the delayed presentation and anticipated softening of the fracture fragment, direct screw or K-wire fixation was considered liable to cause fragmentation. A fragment-sparing Ishiguro extension-block technique was therefore selected.

1. Following exposure and mobilisation of the subluxated DIP joint