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Minim Invasive Surg. 2018 Jul 2;2018:1035954. doi: 10.1155/2018/1035954. eCollection 2018.

Interspinous Process Decompression Improves Quality of Life in Patients with Lumbar Spinal Stenosis.

Author information

1
Spine Institute of Louisiana, Shreveport, LA, USA.
2
The Spine Center, University of Colorado Hospital, Denver, CO, USA.
3
Spine Colorado, Mercy Regional Hospital, Durango, CO, USA.
4
Upstate Bone and Joint Center, East Syracuse, NY, USA.
5
San Francisco, CA, USA.
6
Chicago, IL, USA.

Abstract

Lumbar spinal stenosis has been shown to negatively impact health-related quality of life. Interspinous process decompression (IPD) is a minimally invasive procedure that utilizes a stand-alone spacer to serve as a joint extension blocker to relieve neural compression in patients with spinal stenosis. Using the 5-year results from an FDA randomized controlled trial of IPD, the quality of life in 189 patients treated with the Superion® spacer was evaluated with the SF-12. Physical and mental component summary (PCS, MCS) scores were computed preoperatively and at annual intervals. For the PCS, mean scores improved from 29.4 ± 8.1 preoperatively to 41.2 ± 12.4 at 2 years (40%) and to 43.8 ± 11.6 at 5 years (49%) (p<0.001 for both comparisons). At 2 years, 81% (103 of 128) of subjects demonstrated maintenance or improvement in PCS scores. The mean MCS score improved from 50.0 ± 12.7 preoperatively to 54.4 ± 10.6 and 54.7 ± 8.6 at 2 and 5 years, respectively (p>0.10 for both comparisons). These results demonstrate that the significant impairment in physical well-being found in patients with lumbar spinal stenosis can be ameliorated, in large part, by IPD treatment.

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