PO197 / #595 TREATING SYMPTOMATIC ADJACENT SEGMENT DISEASE AFTER LUMBAR SPINE FUSION WITH INTERSPINOUS PROCESS SPACERS: A MULTICENTER RETROSPECTIVE CASE-SERIES: E-POSTER VIEWING

Abstract

Patients with lumbar spine fusion commonly present with adjacent segment disease leading to mild to moderate stenosis above the level of existing fusion. This may occur due to restricted motion at the original fusion site which thereby may result in additional stress on neighboring spinal segments. One possible treatment approach to avoid perpetuating the spinal deterioration, and to treat the symptomatic adjacent segment is to use interspinous process spacers which have been shown to increase stability in extension while simultaneously reducing rigidity in flexion due to that adjacent segment.