Wow, the information is from a single provider who has had an academic and private practice for 20 years, Sham injection, in my opinion, is very judgemental and at least not accurate before you see their needle placement and contrast pattern.
The imaging I posted here in the thread is for your information only, understand the anatomy of the cervical foramen and how needles can be put in an extra, or junctional location where transforaminal epidural injection can be achieved safely with no risk of arterial injections, the same concept from IPSIS last year where posterior S1 foramen was studied.
2 level tfesi is most commonly a money grab
2 levels of lumbar transforaminal epidural injections are commonly done as well with the understanding there is no evidence for literature to support this, clinical judgment plays a certain role in my knowledge like the severity of stenosis, size of disc herniation, etc, and there are many pain procedures that RCTs do not support. Just making a statement that that is a money grab does not reflect the reality of practice. quoting bilateral 3 levels tf esi is not comparable to 2 levels unilateral injections.