title: Tension signs in lumbar disc prolapse.
mesh_terms: D006801:Humans; D007405:Intervertebral Disc Displacement / Q000134:cerebrospinal fluid / Q000175:diagnosis*; D008159:Lumbar Vertebrae; D009460:Neurologic Examination; D011312:Pressure; D013312:Stress, Physiological / Q000209:etiology*; D014636:Valsalva Maneuver