TY - JOUR
T1 - Surgical and topographic anatomy of the maxillary line
T2 - An important landmark for endoscopic nasal surgery
AU - Raikos, Athanasios
AU - Waidyasekara, Pasan
AU - Morrison, Amy Kathleen
PY - 2015/1/1
Y1 - 2015/1/1
N2 - The maxillary line is an important surgical landmark in the lateral nasal cavity. We investigated its location, variation, and relation to other landmarks in 47 formalin fixed cadaveric half-heads dissected in steps. Measurements and observations were made to describe the topography of the maxillary line, maxillary line midpoint (M-point), and their relationship with surgically important structures. The mean curved length of the maxillary line was 15. mm (SD 3.5) and can be classified into three types. The M-point had a mean vertical distance of 0.8. mm (SD 2.9) below the nasolacrimal sac-duct junction. It was found below, above, or on the same level as the nasolacrimal sac-duct junction in 57.4%, 38.3%, and 4.3% of specimens, respectively. In 51.1% the M-point was anterior to the nasolacrimal duct axis and 48.9% overlapping the lacrimal apparatus. The maxillary line and its M-point are useful surgical landmarks for localizing the nasolacrimal duct segments.
AB - The maxillary line is an important surgical landmark in the lateral nasal cavity. We investigated its location, variation, and relation to other landmarks in 47 formalin fixed cadaveric half-heads dissected in steps. Measurements and observations were made to describe the topography of the maxillary line, maxillary line midpoint (M-point), and their relationship with surgically important structures. The mean curved length of the maxillary line was 15. mm (SD 3.5) and can be classified into three types. The M-point had a mean vertical distance of 0.8. mm (SD 2.9) below the nasolacrimal sac-duct junction. It was found below, above, or on the same level as the nasolacrimal sac-duct junction in 57.4%, 38.3%, and 4.3% of specimens, respectively. In 51.1% the M-point was anterior to the nasolacrimal duct axis and 48.9% overlapping the lacrimal apparatus. The maxillary line and its M-point are useful surgical landmarks for localizing the nasolacrimal duct segments.
UR - http://www.scopus.com/inward/record.url?scp=84940162649&partnerID=8YFLogxK
U2 - 10.1016/j.aanat.2014.10.009
DO - 10.1016/j.aanat.2014.10.009
M3 - Article
C2 - 25466929
SN - 0940-9602
VL - 197
SP - 24
EP - 28
JO - Annals of Anatomy
JF - Annals of Anatomy
ER -