central or lateral recess stenosis, severe spondylolisthesis, history of discitis Percutaneous endoscopic discectomy Contained or small noncontained disc herniation with radicular symptoms Severe ...
Lumbar spinal stenosis (LSS) is the narrowing of ... thickening and bulging of the ligamentum flavum, bulging of an intervertebral disc, osteophyte formation, or spondylolisthesis.