Renato Fricker, Jesse Jupiter, Matej Kastelec
Steve Krikler, Chris Colton
These fractures of the palmar rim include a portion of the articular surface and may be simple or multifragmentary.
In these fractures, there is a single, palmar rim fragment. This may be a relatively small fragment avulsed by the volar capsule, or it may include a significant portion of the articular surface.
These are classified by AO/OTA as 2R3B3.1.
There may be an associated ulnar injury. This is usually a fracture of the ulnar styloid process, but other ulnar fractures are possible.
These are multifragmentary fractures of the palmar rim (including a portion of the articular surface).
These are classified by AO/OTA as 2R3B3.3.