Table 4.

Radiological signs of complications in the temporal bone of the contralateral ear.

Chaussé spur
Normal	68 (90.7%)
Eroded	7 (9.3%)
Lateral semicircular canal
Normal	73 (97.3%)
Fistula	2 (2.7%)
Tympanic tegmen
Normal	74 (98.7%)
Eroded	1 (1.3%)
Cortical layer of posterior fossa
Normal	75 (100%)
Eroded	-
Facial nerve canal [tympanic segment]
Normal	70 (93.3%)
Eroded/Dehiscence	3 (4.0%)
Not visualized	2 (2.7%)
Facial nerve canal [mastoid segment]
Normal	72 (96.0%)
Eroded	2 (2.7%)
Not visualized	1 (1.3%)