When marking landmarks for the R side L2 DRG, which location is marked first?

When marking landmarks for the right side L2 dorsal root ganglion (DRG), the first location to be marked is the inferior medial aspect of the target pedicle. This is crucial because accurately identifying this landmark ensures that the subsequent steps in the procedure are based on a precise anatomical reference.

Marking the inferior medial aspect of the pedicle helps in establishing a clear trajectory for needle insertion, as it serves as a critical point that guides practitioners in aligning their approach toward the DRG. The proximity of this landmark to the nerve roots allows for effective targeting during procedures aimed at addressing pain or other conditions associated with nerve dysfunction.

Once this landmark is marked accurately, other procedures such as determining epidural access and skin entry points can follow based on this established reference. This systematic approach minimizes the risk of misplacement and enhances the efficacy of the intervention. Therefore, prioritizing the marking of the inferior medial aspect of the target pedicle is essential in ensuring the success of the procedure.