1. The fracture of the styloid process of the ulna was not repaired.

2. Both the anatomical and the functional results were clearly worse in the group with rupture of the styloid process of the ulna.

3. Complete detachment of the TFCC from the ulna either without fracture of the styloid process of the ulna or with fracture (floating styloid).

4. A 74-year-old woman sustained a fracture of the distal radius with an additional fracture of the styloid process of the ulna due to a fall.

5. In 60 cases or surgically treated patients with caput ulna syndrome we got the best results after simple resection of the styloid process of the ulna.

6. The symptoms are a prominent head of the ulna, pains around the styloid process of the ulna and perhaps a tenosynovitis of the extensor carpi ulnaris.

7. The repair of a fracture of the styloid process of the ulna is not necessary if reduction and fixation of the distal radius fracture is anatomical and stable.

8. Fracture of the styloid process of the ulna (processus styloideus ulnae; PSU) is the injury that is most often found in association with a distal fracture of the radius.

9. On the ridge of bone dividing the carotid canal from the jugular foramen is the inferior tympanic Canaliculus for the transmission of the tympanic branch of the glossopharyngeal nerve; and on the wall of the jugular foramen, near the root of the styloid process, is the mastoid Canaliculus for the passage of the auricular branch of the vagus nerve.