1. Objective To study application of cervicofacial and cervicothoracic rotation flaps head and neck surgery.

2. CSMT - induced cervicothoracic epidural hematoma, such as the one we describe here , is an extremely rare event.

3. Objective To study application of cervicofacial and cervicothoracic rotation flaps in oromaxillofacial head and neck surgery.

4. Summary of Background Data . Seeral posterior rod constructs are available for instrumentation across the cervicothoracic junction.

5. This study describes mechanical testing of 4 implant constructs designed for fixation across the cervicothoracic junction.

6. Several instrumentation systems are available for posterior spinal stabilization across the cervicothoracic junction.

7. Our hypothesis was that the various constructs available for posterior cervicothoracic fixation would be mechanically equivalent.