In vitro investigations of internal fixation systems of the upper cervical spine. II. Stability of posterior atlanto-axial fixation techniques

Unstable C1-C2 segments are generally treated surgically. Depending on the indication a direct screw fixation of the odontoid or a C1-C2 arthrodesis is a possible technique. In this experimental in vitro study the three different atlantoaxial fusion techniques by Gallie, Brooks, and Magerl were comp...

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