A quick throwing movement upward and inward, or toward patient’s chin. As nearly as may be the force should tend to pass along the spinous process in a direction exactly anterior to the (then) plane of the vertebra.
NOTE: Either hand may be used with this movement.
[Illustration: Fig. 17. Movement for correction of a lateral Atlas whose prominent transverse is posterior.]
This is indicated for postero-rotary or postero-lateral subluxations. Its line of force is a bisector of the angle between the straight anterior and the straight lateral movement.
Fig. 18. A movement for Atlas when laterally displaced. Contact: metacarpo-phalangeal joint with end of prominent transverse. ]
There are two points of contact, both on the first finger, one (first secured) on the radial side of the second phalanx and the other on the radial side of the proximal phalanx. The first contact point is placed against the tip of the spinous, the other behind the transverse process.
Press slightly against the two processes with the finger so as to feel them plainly.
Hold the head with the Hook Support and turn the face away from the adjusting hand (right hand for a P. R., left hand for a P. L.). Drop elbow low and hold it well away from your body so that there appears an obtuse angle between wrist and forearm with the point of the angle toward you. Be careful of this point as the tendency is to make an angle with the point away from you--a weak position.
Drop head backward until firm resistance is felt.
Force is delivered in an antero-lateral direction as above described, _entirely_ with adjusting hand.
For subluxations listed R or L but not Posterior and upon C 6, C 7, D 1, and D 2 only. This movement applies a lateral force to the spinous process so as to correct _rotation_ of the vertebra, but I repeat that it is inappropriate for posterior or postero-lateral subluxations.
Patient lying in position B as for Dorsal adjustment. Find the subluxation by following the record and perceiving that the count assumed to be correct permits the subluxations to correspond to those recorded and that a vertebra in this region is R or L, R. A. or L. A., R. S. or L. S., R. I. or L. I. The laterality of the spinous process determines the next step.