In SLR testing, which ROM range might indicate acute spondylolisthesis, gluteal abscess, disc protrusion or extrusion, buttock tumor, acute dural inflammation, malingering, or the buttock sign?

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When the straight-leg raise is performed, the amount of hip flexion that provokes symptoms tells you where the problem may be originating. If pain or symptom reproduction occurs with only a small amount of elevation (0–30 degrees), it suggests that a non–standard disc issue or a space-occupying process in the buttock region is already irritating structures, rather than a typical disc herniation that irritates nerve roots only after more leg elevation. This range can be seen with acute spondylolisthesis compressing nerve roots, gluteal abscess or buttock tumor, disc protrusion or extrusion presenting atypically, acute dural inflammation, or even malingering producing a buttock-type pain pattern (buttock sign). Because these conditions tend to produce symptoms at very low angles, 0–30 degrees is the range most associated with them. In contrast, classic symptomatic radiculopathy from a straightforward disc herniation usually emerges as the leg is raised further, not right at the start.