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The techniques of placing paravertebral
blocks are demonstrated and practiced. This is done with the
loss of resistance to air technique and with the aid of the
nerve stimulator. Paravertebral blocks with and without catheter
placement are done over the total length of the vertebral
column. An example where the lumbar plexus is stimulated via
the catheter is the psoas compartment block. This block and
its landmarks are similar for pigs and humans.
1. The psoas compartment block:
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