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ABSTRACT: Pure dislocation injuries resulting from severe trauma at the occipito-atlantoaxial junction most commonly result in death.
Either the medulla oblongata or the spinomedullary junction may be severed. It is commonly believed that full-face helmets
are protective during a motorcycle accident. However, previous reports have suggested that full-face helmets have little effect
on neck injuries. Two cases showing occipito-atlantoaxial dislocation are presented here. The effect of full-face helmets
on cervical injuries has been controversial. Although full-face helmets are considered effective in preventing head injury,
the traction of full-face helmets during a crash and removal of the full-face helmet may promote cervical spine or occipito-atlantal
dislocation. We think that traction of full-face helmets during a crash participated in the cause of death in both of the
cases reported here.
KeywordsMotorcycle rider–Full-face helmet–Occipito-atlantal dislocation–Medulla oblongata injury
European Journal of Orthopaedic Surgery & Traumatology 04/2012; 21(4):281-284. · 0.18 Impact Factor