Preservation of Atlantoaxial Rotation in Type II Odontoid Fracture: Successful Single Screw Anterior Odontoid Fixation in a Young Adult

Type II odontoid fractures are the most prevalent type of cervical spine fracture in adults, and they are frequently linked with craniovertebral junction instability. Surgical fixation is recommended in young, active people to preserve cervical mobility and limit the likelihood of nonunion. Anterior odontoid screw fixation is a well-established method that, unlike posterior fusion treatments, preserves atlantoaxial rotation. Here, a case is presented of a 30-year-old male patient who had a type II odontoid fracture as a result of a motor vehicle accident. A clinical evaluation indicated neck discomfort without neurological abnormalities. Radiological examination, including Computed Tomography (CT) and Magnetic Resonance Imaging (MRI), revealed a displaced fracture across the base of the odontoid process without transverse ligament rupture. The patient had a successful single-screw anterior odontoid fixation. Postoperative imaging verified the proper screw insertion and alignment. Serial radiographs after three months, nine months, and one year after surgery revealed gradual consolidation and radiological union of the odontoid fracture. Single-screw anterior odontoid fixation continues to be a useful surgical option for young adults with type II odontoid fractures, since it provides fracture stability while maintaining important cervical spine mobility. Successful outcomes need careful patient selection and precision surgical technique.