Temporal bone fracture (측두부 골절)

	longitudinal	transverse
incidence	80%	20%
Direction to petrous bone	parallel	perpendicular
impact	Temporal or parietal	occipitomastoid
Otic capsule	sparing	disrupting
Ear bleeding or otorrhea	common	Less common
7th nerve	Facial paralysis(20%) delayed onset, good prognosis	Facial paralysis(50%) delayed onset, poor prognosis
8th nerve	Conductive hearing loss	Sensory nerve hearing loss
hemotynpanum	frequent	Less common
Intensity of force	Lesser	greater

 

그림 출처 : otosurgeryatlas.stanford.edu/otologic-surgery-atlas/fractures-encephalocoeles-csf-leak/temporal-bone-fractures/