Atlantoaxial (C1-C2)

Patient is supine on the table with the operator sitting or standing at the head of the table.

Operator’s hands hold each side of the patient’s head with the index fingers monitoring the posterior arch of the atlas.  The operator flexes the patient’s head and neck to provideAASup2 restriction of the typical cervical segment rotation through ligamentous locking.  Neck flexion must be maintained throughout the procedure.

 

 

Operator’s hands introduce right rotation sensing for resistance to movement at his index fingers.  If resistance is encountered, the motion restriction is to right rotation (atlas is AASup3rotated left).

 

 

 

Operator rotates the head to the left sensing for resistance to movement at his index fingers.  If resistance is encountered the motion restriction is to left rotation (atlas is AASup4rotated right).

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