Accuro Versus Traditional Landmark Palpation Technique to Determine Accurate Spinal Level for Procedures

"* For each participant, a provider will first attempt to identify the L4/L5 space using the traditional technique of palpating the iliac crests to estimate spinal level. The provider will mark this space on the person's back with a single dot from a marking pen. The provider will then use the Accuro to again attempt to identify the L4/L5 interspace and mark this point with two dots.~* The participant will then be taken into the fluoroscopy suite for their scheduled procedure a metal instrument will be laid on the skin at the interspace or interspaces that were marked using the palpation and Accuro techniques. Metal instruments show up on fluoroscopy, but the skin markers will not.~* The anesthesiology attending in the fluoroscopy suite will then confirm the true interspace position of these marks under fluoroscopy performed for the standard of care procedure"