Postoperative Severe Headache Following Cervical Posterior Surgical Fixation from C2 Distally

Department of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan Department of Orthopaedic Surgery, Kyung-Hee University School of Medicine, Seoul, Korea Department of Orthopaedic Surgery, Washington University in St. Louis, St. Louis, MO, USA Department of Orthopaedic Surgery, Hallym University Sacred Heart Hospital, Seoul, Korea Department of Orthopaedic Surgery, Columbia University, New York, NY, USA