. Author manuscript; available in PMC: 2019 Dec 1.

Published in final edited form as: J Neurosurg. 2018 Jun 22;130(6):1937–1948. doi: 10.3171/2018.1.JNS172813

TABLE 1.

Measurements performed on 15 cadaveric heads (30 sides) for exposure and vascular control of the basilar apex region through the orbitozygomatic approach

Measurement	Ipsilateral	Contralateral	p Value^*
No. of counted P₁ perforators	3.9 ± 2.5	3.0 ± 1.7	0.6
PCA exposure	19.7 ± 4.7	17.9 ± 6.0	0.64
PCA clipping	19.2 ± 5.5	14.3 ± 5.3	0.001
SCA exposure	13.8 ± 3.2	13.2 ± 3.9	0.94
SCA clipping	12.6 ± 3.4	11.0 ± 3.7	0.36
Proximal basilar exposure	7.7 ± 3.6	NA	NA
Proximal basilar clipping	6.6 ± 3.1	NA	NA
Surgical area of exposure (cm²)	3.2 ± 1.7	NA	NA

NA = not applicable.

Values are presented as the mean ± SD and are shown in millimeters (mm) unless otherwise stated.

One-way ANOVA with Tukey-Kramer post hoc analysis.