Objective:
There are several treatment options for patients suffering from lumbar spinal stenosis, including surgical and conservative care. Interspinous spacer decompression using the Superion device offers a less invasive procedure for patients who fail conservative treatment before traditional decompression surgery. This review assesses the current cost-effectiveness, safety, and performance of lumbar spinal stenosis treatment modalities compared with the Superion interspinous spacer procedure.
Methods:
EMBASE and PubMed were searched to find studies reporting on the cost-effectiveness, safety, and performance of conservative treatment, including medicinal treatments, epidural injections, physical therapy, and alternative methods, as well as surgical treatment, including laminectomy, laminectomy with fusion, and interspinous spacer decompression. Results were supplemented with manual searches.
Results:
Despite substantial costs, persistent conservative treatment (>12 weeks) of lumbar spinal stenosis showed only minimal improvement in pain and functionality. When conservative treatment fails, surgery is more effective than continuing conservative treatment. Lumbar laminectomy with fusion has considerably greater cost than laminectomy alone, as the length of hospital stay increases, the costs for implants are substantial, and complications increase. Although laminectomy and the Superion have comparable outcomes, the Superion implant is positioned percutaneously. This approach may minimize the direct and indirect costs of outpatient rehabilitation and absenteeism, respectively.
Conclusions:
Superion interspinous lumbar decompression is a minimally invasive procedure for patients with lumbar spinal stenosis who have failed conservative treatment. Compared with extending conservative treatment or traditional spinal surgery, interspinous lumbar decompression reduces the direct and indirect costs associated with lumbar spinal stenosis.
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Web-based machine learning application for interpretable prediction of prolonged length of stay after lumbar spinal stenosis surgery: a retrospective cohort study with explainable AI.
Yasheng P, Yusufu A, Yimiti Y, Luan H, Peng C, Song X
Front Physiol. 2025; 16:1542240.
PMID: 40046179
PMC: 11880216.
DOI: 10.3389/fphys.2025.1542240.
Advancing the design of interspinous fixation devices for improved biomechanical performance: dual . single-locking set screw mechanisms and symmetrical . asymmetrical plate designs.
Chin K, Lore V, Spayde E, Costigan W, Irfan Z, Battel O
J Spine Surg. 2024; 10(3):386-394.
PMID: 39399071
PMC: 11467278.
DOI: 10.21037/jss-24-13.
Impact of Racial and Socioeconomic Disparities on Access to Interspinous Spacer for Treatment of Lumbar Spinal Stenosis: A Nationwide Medicare Analysis.
Cho A, Tran O, McGovern A, Chan K, Yong R
J Racial Ethn Health Disparities. 2024; .
PMID: 39042335
DOI: 10.1007/s40615-024-02097-8.
Longitudinal Analysis of the Care Pathway of Patients with Lumbar Spinal Stenosis in the US.
Naidu R, Tran O, Schatman M
J Pain Res. 2024; 17:1979-1987.
PMID: 38854929
PMC: 11162185.
DOI: 10.2147/JPR.S454887.
Is the interspinous process device safe and effective in elderly patients with lumbar degeneration? A systematic review and meta-analysis of randomized controlled trials.
Han B, Chen Y, Liang W, Yang Y, Ding Z, Yin P
Eur Spine J. 2024; 33(3):881-891.
PMID: 38342843
DOI: 10.1007/s00586-023-08119-z.
Prospective 5-year follow-up of L5-S1 versus L4-5 midline decompression and interspinous-interlaminar fixation as a stand-alone treatment for spinal stenosis compared with laminectomies.
Chin K, Seale J, Spayde E, Costigan W, Gohel N, Aloise D
J Spine Surg. 2024; 9(4):398-408.
PMID: 38196724
PMC: 10772657.
DOI: 10.21037/jss-23-49.
Longitudinal Comparative Analysis of Complications and Subsequent Interventions Following Stand-Alone Interspinous Spacers, Open Decompression, or Fusion for Lumbar Stenosis.
Whang P, Tran O, Rosner H
Adv Ther. 2023; 40(8):3512-3524.
PMID: 37289411
PMC: 10329952.
DOI: 10.1007/s12325-023-02562-6.
Comparison analysis of safety outcomes and the rate of subsequent spinal procedures between interspinous spacer without decompression versus minimally invasive lumbar decompression.
Rosner H, Tran O, Vajdi T, Vijjeswarapu M
Reg Anesth Pain Med. 2023; 49(1):30-35.
PMID: 37247945
PMC: 10850670.
DOI: 10.1136/rapm-2022-104236.
Best Practices for Minimally Invasive Lumbar Spinal Stenosis Treatment 2.0 (MIST): Consensus Guidance from the American Society of Pain and Neuroscience (ASPN).
Deer T, Grider J, Pope J, Lamer T, Wahezi S, Hagedorn J
J Pain Res. 2022; 15:1325-1354.
PMID: 35546905
PMC: 9084394.
DOI: 10.2147/JPR.S355285.
A Differential Clinical Benefit Examination of Full Lumbar Endoscopy vs Interspinous Process Spacers in the Treatment of Spinal Stenosis: An Effect Size Meta-Analysis of Clinical Outcomes.
Lewandrowski K, Abraham I, Leon J, Cantu-Leal R, Longoria R, Soriano Sanchez J
Int J Spine Surg. 2022; 16(1):102-123.
PMID: 35177530
PMC: 9535687.
DOI: 10.14444/8200.
A Radiological Evaluation of Lumbar Spinous Processes and Interspinous Spaces, Including Clinical Implications.
Kaya Ayvaz D, Kervancioglu P, Bahsi A, Bahsi I
Cureus. 2021; 13(11):e19454.
PMID: 34912602
PMC: 8664751.
DOI: 10.7759/cureus.19454.
Decompression Using Minimally Invasive Surgery for Lumbar Spinal Stenosis Associated with Degenerative Spondylolisthesis: A Review.
Zhang J, Liu T, Shan H, Wan Z, Wang Z, Viswanath O
Pain Ther. 2021; 10(2):941-959.
PMID: 34322837
PMC: 8586290.
DOI: 10.1007/s40122-021-00293-6.
Comparison of Adverse Outcomes Following Placement of Superion Interspinous Spacer Device Versus Laminectomy and Laminotomy.
Welton L, Krieg B, Trivedi D, Netsanet R, Wessell N, Noshchenko A
Int J Spine Surg. 2021; 15(1):153-160.
PMID: 33900969
PMC: 7931702.
DOI: 10.14444/8020.