Indications:
● Post-operative cervical fractures
● Halo removal
● Anterior cervical fusion
● Dens type I cervical fracture of C2
● Anterior discectomy
● Suspected cervical trauma in unconscious patients
● Tear-drop fracture of the vertebral body （Note: Some tear-drop fractures require anterior decompression and fusion.）
● Cervical strain
 
Features:
● Made of closed cell foam material
● An anterior hole for a tracheostomy is available