Abstract: Objective To explore the clinical features and operation method of styloid process abnormal and stylohyoid ligament ossification. Methods CT scanning and styloid 3D reconstruction were pre-operatively performed on 9 patients with stylohyoid ligament ossification, and cervical approach-styloidectomy was performed to amputate ossificated stylohyoid ligament, ceratohyal and part of styloid process. Results The clinical symptoms of 8 patients disappeared and the symptoms of 1 patient significantly relieved after the operation, no obvious complications occurred. Conclusion Patients with styloid process of stylohyoid ligament ossification of the styloid process can be definitely diagnosed by CT scan and should undergo cervical approach styloidectomy which produces exactly curative effect and no significant adverse reactions.

Key words: Elongated styloid process, Hyoid bone, Ligaments