Costotransverse block versus costotransverse foramen block: Long way to clarity on the difference in anatomy and techniques

Inter-transverse process blocks-clarifications

“…Nevertheless, it can still be considered a "CTFB" because the final needle position can be adjusted (slightly deeper and caudad) if the local anesthetic spreads into the erector spinae plane instead of displacing the pleura. I initially overlooked this aspect but later gained clarity [4].…”

“…Similarly, the injection site of the costotransverse block -a term I prefer over "multiple-injection costotransverse block" for clarity -is also in close proximity to the other three ITPBs (CTFB, MTPB, STIL block). The primary distinction lies in the needle trajectory, proceeding from cephalad to caudad, targeting the neck of the rib attached to the caudad TP [4]. Importantly, clinicians should further investigate which ITPB is easier to perform besides assessing the complications.…”