Spread of local anesthetic injected in the paravertebral space, intertransverse processes space, and erector spinae plane: a cadaveric model
Authors' conclusion
Based on the results of this cadaveric experimental model of paraspinal fascial plane blocks, LA spread following ITP blocks extends into both the PV space and the erector spine fascial plane, and thus may offer a more favorable analgesic profile than ESP blocks.
Study context
- Population
- Fresh cadaver hemithoraces
- Participants
- 15 hemithoraces
- Comparison
- Erector spinae plane (ESP) vs intertransverse process (ITP) vs paravertebral (PV) block
- ESPn = 5
- ITPn = 5
- PVn = 5reference
- Outcome
- Extent of local anesthetic (LA) spread within the erector spinae fascial plane, dorsal ramus involvement and distribution within the PV space (qualitative)
Methodological detailsultrasound-guided, single-injection
- Ultrasound-guided
- Single-injection
Main finding
As reported in the abstract
LA spread
ESP: spread 8 vertebral levels cranio-caudally, dorsal ramus involved at each level, no spread into PV space or ventral rami
8 levels
ITP: spread within PV space
1-2 levels
ITP: spread within erector spinae fascial plane
7 levels
PV: spread with ventral and dorsal ramus involved at each level, no spread into ESP
2-4 levels
Original publication
Spread of local anesthetic injected in the paravertebral space, intertransverse processes space, and erector spinae plane: a cadaveric model. Reg Anesth Pain Med. Published 22 August 2023. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →