Quadratus lumborum block: an imaging study of three approaches.
Angela Lucia BaloccoAna M LópezCedric KestelootJean-Louis HornJean-François BrichantCatherine VandepitteAdmir HadzicPhilippe GautierPublished in: Regional anesthesia and pain medicine (2020)
The spread of injectate after QL1, QL2, and QL3 blocks, resulted in different distribution patterns, primarily in the area of injection. The TOP QL3 did not result in consistent interfascial spread toward the thoracic paravertebral space.