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. Author manuscript; available in PMC: 2013 Nov 15.
Published in final edited form as: Spine J. 2012 Nov 15;12(11):1021–1028. doi: 10.1016/j.spinee.2012.10.009

Figure 2.

Figure 2

Figure 2

RM configuration; the wide arrow shows the force to trip the cam and the thinner arrow gives one component of the intended treatment force.

RM configuration; the wide arrow as in 2a; the manual contact with the operator’s thumb (thin arrow) and direction of second intended component (thinnest arrow) are shown (head is over-rotated to show thumb contact).