<prompt> Mode of trauma in petrous bone fractureLongitudinalTransverseMixedAny complete fracture  <response>: Longitudinal 97-Dhingra 4th 698- Bailey Love 25th The otic capsule is the hardest bone in the body. If trauma to the head is severe. Temporal bone fractures may occur. These tends to be either longitudinal 80 or Transverse 20 Transverse fracture usually involve the labyrinth and lead to a sensorineural hearing loss that is permanent Fracture of temporal bone may be longitudinal, transverse or mixed Facial palsy is seen in more often in transverse fracture 50 