Maverick Modules (20 - 22) Ultrasound FNB, ACB, PPB Flashcards
What depth is used for an ultrasound guided femoral nerve block?
3-5 cm
What “triangle” is looked for to located the femoral nerve?
Fascial Iliaca “Triangle”.
Why are two “pops” felt when performing an ultrasound guided FNB?
“pops” occur from needle passing through fascia lata and fascia iliaca
Where do you inject for an ultrasound-only guided Femoral Nerve Block?
The needle approach for a Femoral Nerve Block is medial to lateral. T/F?
False. In-plane lateral to medial.
What was the purpose of the development of the adductor canal block?
Preserve Quad strength post-surgery
What muscles border the adductor canal?
- Sartorius
- Adductor Longus
- Vastus Medialis
What nerve is not frequently found in the adductor canal and requires blockade separate from your adductor canal injection?
Vastus Medialis Nerve
Can the Vastus Medialis Nerve be located via nerve stimulation?
If so, what muscle twitches?
Yes; twitching of medial head of quadriceps will be noted.
Where does the majority of quadriceps strength come from?
- Biceps Femoris
- Vastus Lateralis
What nerve roots does the femoral nerve arise from?
L2, L3, and L4
What is the sensory-only component of the femoral nerve distribution?
Saphenous Nerve
What is the proper probe placement for adductor canal block?
Where is the popliteal plexus block performed?
At the most distal portion of the adductor canal
What medication is indicated with popliteal plexus blocks?
0.5% Bupivacaine w/ (Dexamethasone or Epi)
