PURPOSE: To evaluate the midterm clinical and radiologic outcome of percutaneous @entity1650 ( @entity1650 ) treatment for @entity613 ( @entity613 ) in @entity1 who fail conservative treatment. METHODS: Consecutive @entity1 with @entity613 , lumbar spinal stenosis confirmed on magnetic resonance imaging, failure of conservative management for at least 6 months, and treatment with percutaneous @entity1650 were included. Visual analog scale (VAS) and @entity717 Index (ODI) scores were recorded at baseline, 1 month, 1 year and 3 years after treatment. Spinal canal and foraminal cross-sectional areas were calculated from multidetector computed tomography at baseline and 1 year. RESULTS: There were 80 @entity1 treated with 94 @entity1650 devices; 83% of @entity1 received a single @entity1650 ; 78% of @entity1650 devices were placed at L4-L5. An @entity1650 dislocation was the single periprocedural major complication. VAS score of 8.1    2 before treatment was reduced to 4.4    2 at 1 month after treatment (P = .0001); ODI score of 23.3    10 before treatment was reduced to 11.7    8.5 at 1 month after treatment (P = .0001). These significant reductions were durable at 1-year and 3-year follow-up evaluations (P < .01). Spinal canal and foraminal cross-sectional area increased by 15% at 1 year (P = .0001). CONCLUSIONS: @entity1 with @entity613 who failed conservative treatment and were treated with percutaneous @entity1650 achieved significant gains in @entity158 relief and @entity717 that remained durable at 3-year clinical follow-up evaluation. This outcome was accompanied by significant increases in spinal canal and foraminal cross-sectional areas at the treated level.

Midterm Clinical and Radiologic Outcomes after Percutaneous Interspinous Spacer Treatment for XXXX .

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients'] @entity1650 :: ('MESH:D001308', 'Disease') :: ['IPS', 'interspinous process spacer'] @entity613 :: ('MESH:D007383', 'Disease') :: ['neurogenic intermittent claudication', 'NIC'] @entity158 :: ('MESH:D010146', 'Disease') :: ['pain'] @entity717 :: ('MESH:D009069', 'Disease') :: ['reduced disability', 'Oswestry Disability']
@entity613 :: (MESH:D007383,Disease) :: ['Neurogenic Intermittent Claudication']
