ORIGINAL AND CLINICAL ARTICLESLumbar spinal stenosis (LSS) is defined as a patho logical process in which bony, ligamentous, and sy novial elements of the lower axial spine degenerate and progressively overgrow, compressing, in turn, the neural and vascular elements in the spinal ca nal. This compression can either be asymptomatic or generate a combination of static back pain, ra
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