ISASS Recommendations/Coverage Criteria for Decompression with Interlaminar Stabilization – Coverage Indications, Limitations, and/or Medical Necessity Authors: Richard Guyer, MD; Michael Musacchio, MD; Frank P. Cammisa, Jr., MD; and Morgan P. Lorio, MD, FACS This paper was originally published here. A PDF version of this Policy Statement can be accessed here. Introduction Broadly defined, lumbar spinal stenosis (LSS) is the progressive narrowing of the spinal canal and neural foramen resulting in pressure upon the nerve(s) leading to pain and/or numbness in the extremities, muscle weakness, bowel and bladder issues, and/or other pain related issues. However, the difficulty arises in that spinal stenosis is a heterogeneous condition with multiple etiologies which may present with disc height loss, facet hypertrophy, spondylolisthesis, retrolisthesis, coronal
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