Ultrasound Blocks for the Anterior Abdominal Wall

1. Anatomy for Anesthesiologists | 23
Communication Between Anatomical Planes
As confirmed by several, although conflicting, anatomical and
clinical studies, a virtually communicating plane may exist
between the quadratus lumborum muscle, the psoas major
muscle and the TAM, the transversalis fascia and the iliac fascia.
This communication occurs especially at the inguinal level
where the lumbar plexus roots run (Farny 1994, Rosario 1997).
Moreover there may be a communication between the
thoracolumbar or lumbodorsal fascia, the paravertebral space,
the fascia transversalis and iliac fascia (Mirilas 2010, Saito 1999).
The presented data are important for the performance of safe
and effective blocks and to avoid the possible complications of
abdominal blocks.