What are the fixations for a PLI?

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Multiple Choice

What are the fixations for a PLI?

Fixations are described by the directions in which a spinal segment is restricted. For a PLI pattern, the segment is held in extension, with the restriction also present when rotating to the right and when bending to the left. This specific combination arises from how the facet joints and supporting tissues tighten, creating a characteristic coupling of movements. When you assess the segment, you’ll find the most noticeable limitation in extending, plus limited rotation to the right and left lateral bending. That precise set of restrictions defines the PLI fixation, making extension with right rotation and left lateral bend the best match. Other direction combinations would describe different fixation patterns and don’t fit this pattern.

Fixations are described by the directions in which a spinal segment is restricted. For a PLI pattern, the segment is held in extension, with the restriction also present when rotating to the right and when bending to the left. This specific combination arises from how the facet joints and supporting tissues tighten, creating a characteristic coupling of movements. When you assess the segment, you’ll find the most noticeable limitation in extending, plus limited rotation to the right and left lateral bending. That precise set of restrictions defines the PLI fixation, making extension with right rotation and left lateral bend the best match. Other direction combinations would describe different fixation patterns and don’t fit this pattern.

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