Proximal articular, multifragmentary

When vertical compression forces, created by axial load, are applied to the finger, comminuted, intraarticular, compression fractures may result. These fractures are very unstable.
Typically, they occur in two configurations:

as centrally impacted, comminuted fractures, or
with a T- or Y-type fracture geometry.
It is desirable to obtain stable fixation to allow early motion and to minimize the risk of degenerative joint disease.