Different Volumes of Local Anesthetics in Thoracolumbar Interfascial Plane Block
Status:
Recruiting
Trial end date:
2022-06-03
Target enrollment:
Participant gender:
Summary
Ultrasound-guided thoracolumbar interfascial plane block (TLIP)was first described in 2015 by
Hand et al which also target the dorsal rami of the thoracolumbar nerves as they pass through
the paraspinal musculature(between the multifidus muscle (MF) and the longissimus muscle
(LG)). The block was performed bilaterally at the level of L3 and they reported a
reproducible area of anesthesia to pinprick in a mean (SD) area covering 137.4 (71.0) cm2 of
the lower back (including the midline) after 20 minutes of the block. This procedure has
subsequently been modified by Ueshima H et al in 2016 by targeting the injection in the plane
between the longissimus and iliocostalis muscles (mTLIP) which helps avoiding the spread of
local anesthetics to the ventral ramus and neuraxial space, thus, the modified TLIP block is
considered to be a more refined version of the original TLIP block and safer and easier to
perform.
There are limited number of studies investigating the analgesic efficacy of mTLIP block
however, no previous study has demonstrated the ideal local anesthetic volume for this block
in lumber spine surgery. Moreover, this technique is considered new regional anesthetic
techniques and so both of them should be involved in further studies, on the other hand the
comparison between both of them at the same study wasn't discussed before, and so we will
proceed at this study.