Different blades ..Different C -spine movement

Straight or curved?

There are a few degrees lesser extension at C1/2 with a straight blade (LeGrande et al) than curved blade . It is unlikely that this difference is clinically meaningful.

What about glidoscope?

It seems intuitive that having a video-assisted device that allows one to "look around the corner" would reduce motion.

However the existing data do not always support this

Turkstra et al and Robitaille et al failed to show meaningful differences in Cspine motion between intubations performed with Mac3 blades vs. a Glidescope. The Bullard and WuScopes may be better (Watts et al).

Is a fiberoptic intubation really "better"? yes - when it can be done smoothly without coughing, gagging or bucking! Several studies haveshown nearly zero Cspine motion with FOB (e.g. Brimacombe et al) - but all bets are off when things don't go smoothly.An option is asleep FOB if you are good with a scope and are certain about your ability to mask ventilate (but remember, the neck moves with mask ventilation as well).

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