Characteristics of unicortical and bicortical lateral mass screws in the cervical spine.
Seybold EA, Baker JA, Criscitiello AA, Ordway NR, Park CK, Connolly PJ. Characteristics of unicortical and bicortical lateral mass screws in the cervical spine. Spine (Phila Pa 1976). 1999 Nov 15; 24(22):2397-403.