Question

a \pls\ listing can be converted to all of the following, except?
a) left rotation/left lateral flexion restriction
b) right rotation, right lateral flexion malposition
c) left rotation/right lateral flexion restriction
d) right posterior inferior

Explanation:

In chiropractic or spinal biomechanics, a "PLS" (Posterior Left Superior) listing has specific conversion rules. A PLS listing relates to spinal malpositions and restrictions. Analyzing each option:

• Option a: Left rotation/left lateral flexion restriction can be a conversion of PLS.
• Option b: Right rotation, right lateral flexion malposition is a valid conversion.
• Option c: Left rotation/right lateral flexion restriction does not align with PLS conversion logic.
• Option d: Right posterior inferior is a possible conversion.

So the one that is not a valid conversion is option c.

Answer:

c) Left rotation/right lateral flexion restriction