Comparisons of Unicortical and Bicortical Lateral Mass Screws in the Cervical Spine:Safety vs Strength*

Choon-Keun Park, M.D., Jang-Hoe Hwang, M.D., Chul Ji, M.D., Jae Un Lee, M.D., Jae Hoon Sung, M.D., Seung-Jin Choi, M.D., Sang-Won Lee, M.D., Eric Seybold, M.D., Sung-Chan Park, M.D., Kyung-Suok Cho, M.D., Chun-Kun Park, M.D., Joon-Ki Kang, M.D. Department of Neurosurgery, Medical College, The Catholic University of Korea, Suwon, Korea Department of Neurosurgery, Hallym University College of Medicine, Choonchun, Korea Department of Orthopedic Surgery, State University of New York, New York, USA