RT Journal
T1 SEptember 1999
JF Archives of Surgery
JO Archives of Surgery
YR 1999
FD September 1
VO 134
IS 9
SP 1001
OP 1001
DO 10.1001/archsurg.134.9.1001
UL http://dx.doi.org/10.1001/archsurg.134.9.1001
AB 
The trauma neck zones are as follows: Zone 1 is that portion of the neck from the cricoid cartilage down to the clavicles; Zone 2 is the angle of the mandible to the cricoid cartilage; and Zone 3 is the skull base to the angle of the mandible. These zones are in the same anatomic order as the Le Fort fractures III, II and I.1