This prospective longitudinal study will compare incidence rates of Medicare beneficiary surgical and minimally invasive intervention post index procedure, as well as harms associated with the MILD procedure, at 24 months post-treatment with MILD, tested against a control group of similar patients that have had a comparable procedure. This study will start with patients treated with a study procedure having an index date on or after January 1, 2017, and enrollment will continue until stopped by the sponsor.



Eligible Ages
Over 18 Years
Eligible Genders
Accepts Healthy Volunteers

Inclusion Criteria

  • Medicare beneficiaries receiving MILD or interspinous process decompression - Diagnosis of LSS with NC

Exclusion Criteria

  • Patients that have received a laminectomy, laminotomy, fusion, interspinous process decompression, or MILD in the lumbar region during the 12 months prior to the index date

Study Design

Study Type
Observational Model
Time Perspective

Arm Groups

ArmDescriptionAssigned Intervention
MILD All Medicare patients treated with MILD as reported via CPT® Code 0275T (or successor code(s)).
  • Device: MILD
    MILD is performed under fluoroscopic image guidance through an ipsilateral interlaminar dorsal approach to the spine. Following epidurography, partial decompression is performed through the removal of tissue and bone at the symptomatic level confirmed with correlated MRI and clinical findings.
Interspinous Process Decompression All Medicare patients treated with interspinous process decompression (CPT Code 22869 or 22870, or successor code(s)) for the treatment of LSS with NC.

Recruiting Locations

UTMB Health League City Campus Hospital
League City, Texas 77573

University of Texas Medical Branch - Clear Lake
Webster, Texas 77598

More Details

Vertos Medical, Inc.

Study Contact

Angie Lee

Detailed Description

In this study the treatment group will include all patients receiving MILD, and the control group will include all patients receiving IPD for the treatment of LSS during the enrollment period. Reoperation and harms data will be studied for the MILD and IPD procedures for a 24-month follow-up period after the index procedure using Medicare claims data. This study is exempt from IRB oversight (Department of Health and Human Services regulations 45 CFR 46) and does not require prior enrollment nor patient consent. The inclusion of the study's NCT number on MILD Medicare claims is required and results in enrollment.


Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.