

Subluxation - A
motion segment in which alignment, movement integrity, and/or
physiologic function are altered, although contact between joint
surfaces remains intact.
Manipulable subluxation - A subluxation in which altered alignment, movement, and/or function can be improved by manual thrust procedures.
Subluxation complex - A
theoretical model of motion segment dysfunction (subluxation) that
incorporates the complex interaction of pathologic changes in nerve,
muscle, ligamentous, vascular, and connective tissue.
Subluxation syndrome - An aggregate of signs and symptoms that relate to pathophysiology or dysfunction of spinal and pelvic motion segments or to peripheral joints