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Maxillofacial Plastic and Reconstructive Surgery

Table 3 Vertical and horizontal distances between porion (Po) and external auditory meatus (EAM) of the downward-canted (right) and upward-canted (left) side

From: Positional symmetry of porion and external auditory meatus in facial asymmetry

Po-EAM distances

Group I

Group II-A

Group II-B

Vertical

Right

10.35 ± 3.17

10.98 ± 2.32

10.89 ± 2.53

Left

10.34 ± 2.41

10.99 ± 2.62

9.96 ± 2.21

Diff

0.01 ± 2.28

−0.01 ± 1.67

0.93 ± 1.45

p value

0.985

0.981

0.001*

Horizontal

Right

2.28 ± 2.19

3.74 ± 2.64

2.38 ± 2.95

Left

2.37 ± 2.35

3.46 ± 2.08

3.05 ± 2.07

Diff

−0.09 ± 2.69

0.28 ± 1.96

−0.67 ± 2.36

p value

0.876

0.633

0.110

  1. Mean ± standard deviation, mm, paired t test
  2. Po porion, EAM external auditory meatus, Diff difference between the right and left side distance, * denotes statistical difference (p < 0.05)
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