Abstract
To evaluate the therapies and clinical outcome for different types of odontoid process fracture. Twenty-one patients with odontoid process fracture were treated with different therapies for different Anderson-D'Alonzo classifications: three cases of type I were treated by traction of occipital-jaw band and fixed with head-neck-chest plaster at 6 weeks; thirteen cases of type II were treated by cannulated screws following skull traction and reduction; and for the cases of type III, one was fixed with screw when the fracture was reduced by skull traction, and four with atlantoaxial pedicle screw. All cases were followed up for a mean of 9 months (range: 3 - 48). All cases achieved bony union. No post-operative complication was found. Odontoid process fracture should be treated according to different types. Conservative treatment for type I fracture and cannulated screws for type II and low type III fracture can obtain a satisfactory outcome. Atlantoaxial pedicle screw should be chosen if the superficial type III fracture is not suitable for cannulated screw.
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