Ulnar styloid fractures are of different types
Nightstick fracture: This is a fracture of the middle portion of the ulna only, no other bone is fractured.
Distal ulna fractures: This usually occurs along with distal radius fractures.
Monteggia fracture: This is a fracture of the proximal third of the ulna. It occurs along with the dislocation of the head of the radius.
Hume fracture: This is a fracture of the olecranon accompanied with anterior dislocation of the radial head.