Spinecare Topics
Spinal Dysfunction
The condition referred to as joint dysfunction refers to abnormal joint movement or an abnormal response to loads placed upon it. Joint dysfunction may be categorized by the pattern of abnormal movement. A loss of joint movement can be referred to as a fixation. The four general categories of fixations are:
Type I: muscular fixation which is characterized as a spasm or cramping of the muscle
surrounding the joint restricting joint movement.
Type II: ligamentous fixation which is characterized by shortening of ligaments often
associated with degeneration of the spinal segment. This also leads to a
reduction of joint movement
Class III: articular fixation refers to bony restriction of movement. This is essentially the
result of joint “gluing� with multiple shortened ligaments in the presence of some
degree of scar tissue or adhesions. The thickened joint capsule also becomes
Class IV or the bony restriction is characterized by the presence of bone growths/spurs.
They are typically obvious on an x-ray evaluation. The calcium deposition within
the soft tissues around the joint and soft tissue adjacent to the vertebrae can
progress to the point of becoming a bony bridge across the joint restricting
movement.
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