Determining the optimal management of geriatric type II odontoid fractures: a comparative network meta-analysis.

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Abstract

Conflict of interest statement: Declarations. Ethics approval: Not applicable. Consent to participate: Not applicable. Consent to publish: Not applicable. Clinical trial number: Not applicable. Competing interests: The authors declare no competing interests. 6. No Shinkei Geka. 1992 Aug;20(8):887-91. [Fresh fracture of the odontoid process treated with direct screw fixation; a case report]. [Article in Japanese] Hasegawa T(1), Hamada Y, Miyamori T, Yamano K. Author information: (1)Department of Neurosurgery, Toyama Municipal Hospital. A case of a fresh type II fracture (Anderson & D'Alonzo) of the odontoid process treated with direct screw fixation is reported. A 52-year-old man complained of severe neck pain following a hit on his forehead incurred in a falling accident. Neurological examination was normal. Cervical spine x-ray films and axial CT scans revealed a fracture at the base of the dens. It was slightly oblique leftup and rightdown, and the dens fragment was displaced 3mm lateral to the right. One week after the injury, this odontoid fracture was directly fixed with a compression screw by an anterior cervical approach. Immediately after the operation, his neck pain disappeared. He had only 4 days of bed rest and 2 months of external immobilization with a simple neck collar. He returned to his previous job 2 months after surgery without any limitation of his neck movement. At follow-up examination 16.5 months after the operation, x-ray films demonstrated complete fusion of the fracture and no problem about the screw such as displacement or breakage. Direct screw fixation of an odontoid fracture via a transcervical approach was thought to be a reasonable method of treatment. For proper assembly of this method, the following two points are particularly recommended: a screw insertion perpendicular to the fracture plane and the use of an optimal screw with both the desired total and thread lengths.