General Editor: Luiz Vialle

Authors: Ronald Lehman, Daniel Riew, Klaus Schnake

Occipitocervical trauma - C0, C0 Fractures Hard collar

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1 Introduction top

The purpose of a collar is to prevent ranges of motion outside of limits deemed unfavorable for fracture healing.

A fracture that is deemed to be stable may be treated with a collar immobilization or without immobilization.

Early mobilization is instituted once a patient is upright. AP lateral plain x-rays are then obtained to make sure there is no significant fracture displacement requiring surgery.

2 Philadelphia collar top


The Philadelphia collar is used for the initial conservative treatment. It provides more stability than the hard collar.

If follow up X-ray show no displacement after 2 weeks, one can change to the hard collar for patient comfort.

v1.0 2016.12.01