Skip to Main Content

Fascia Iliaca, Peng Blocks

December 09, 2025
ID
13688

Transcript

  • 00:01Welcome to Yale emergency ultrasound
  • 00:04nerve block series. Today, we're
  • 00:05going to be talking about
  • 00:06fascia ileaca and pain blocks.
  • 00:11Because both of these blocks
  • 00:12are large falling blocks, we
  • 00:14recommend about thirty to forty
  • 00:16cc total of anesthetic and
  • 00:19normal saline together.
  • 00:21As far as your choice
  • 00:23of anesthetics, we recommend ropivacute
  • 00:25or bupivacute
  • 00:26for longer lasting effects
  • 00:28and consulting your pharmacist regarding
  • 00:31the dose
  • 00:32as well as the concentration.
  • 00:34Now, let's talk about the
  • 00:36indications for these two blocks.
  • 00:38Fascia iliaca block provides anesthesia
  • 00:41to the regions above.
  • 00:43So it's used for low
  • 00:45force mechanism hip fracture
  • 00:47as well as mid shaft
  • 00:48femur fracture.
  • 00:50As far as the pain
  • 00:51block, it will help with
  • 00:53intratracheateric
  • 00:55fracture,
  • 00:56astrotabular
  • 00:57fracture,
  • 00:58pubic merrimae fracture,
  • 00:59as well as hip dislocations.
  • 01:03Now let's look at the
  • 01:04anatomy.
  • 01:05This is the right lower
  • 01:06extremity.
  • 01:08If you look, you can
  • 01:10see navel
  • 01:11from femoral nerve,
  • 01:13artery,
  • 01:14vein, and lymphatics.
  • 01:16On top of the screen,
  • 01:17you can see fascia latae.
  • 01:20If you follow along down,
  • 01:22you can see fascia iliaca.
  • 01:24And right below the fascia
  • 01:26iliaca
  • 01:27is where you will dump
  • 01:28all the anesthetics.
  • 01:31So now let's review the
  • 01:33anatomy on a real live
  • 01:34model.
  • 01:36You'll want to use the
  • 01:37linear probe in nerve block
  • 01:40settings
  • 01:41Position your probe as if
  • 01:43you were doing a femoral
  • 01:44central line
  • 01:46Slide the probe a little
  • 01:47laterally
  • 01:48that way you can identify
  • 01:50the femoral artery
  • 01:52Follow along even more lateral,
  • 01:55and here, you can see
  • 01:56your fascia lata.
  • 02:00Right underneath,
  • 02:02you can see the fascia
  • 02:03iliaca.
  • 02:05Going through the fascial layers,
  • 02:07you should feel
  • 02:08two pops from fascia lata
  • 02:11and fascia iliaca.
  • 02:14And of course, last but
  • 02:15not least, here's your iliopsoas
  • 02:17muscle.
  • 02:18So now that you're ready
  • 02:20to block your patient, let's
  • 02:21talk about the steps.
  • 02:23Step one,
  • 02:24prep for the block.
  • 02:26First, of course, you will
  • 02:27need to get consent from
  • 02:28your patient.
  • 02:30Put the patient on the
  • 02:31monitor.
  • 02:32Finding your resources, which includes
  • 02:34grabbing the nerve block kit
  • 02:36outside of a sixteen, extra
  • 02:38hands that can help you
  • 02:39push the anesthetics,
  • 02:40and, of course, discussing with
  • 02:42your pharmacists.
  • 02:44Step two, identify
  • 02:46the landmark and anatomy on
  • 02:48your patient. Don't forget to
  • 02:49use about one to two
  • 02:51cc of lidocaine to make
  • 02:52a wheel, then stabilize your
  • 02:55non dominant hand that's holding
  • 02:56the ultrasound probe.
  • 02:58And when you're ready, you're
  • 02:59going to poke the patient.
  • 03:01Then you'll poke and pop
  • 03:03through fascia latae and fascia
  • 03:05ileaca. Once you've popped through
  • 03:07your fascia ileaca,
  • 03:08make sure to have your
  • 03:09assistant give you about one
  • 03:11to two cc to hydro
  • 03:13dissect. You'll switch to anesthetics
  • 03:16once you're ready
  • 03:17and inject
  • 03:18four to five cc
  • 03:20every thirty seconds or so.
  • 03:23Make sure to check-in with
  • 03:25your patients for signs and
  • 03:26symptoms of the test.
  • 03:29Wow. You've made it this
  • 03:30far. Now let's talk about
  • 03:31the PING block.
  • 03:33Pericapsular
  • 03:34nerve root, also known as
  • 03:35PING,
  • 03:36provides anesthesia to the hip
  • 03:38joint without affecting the motor
  • 03:40function of quadriceps
  • 03:41muscle or altering the sensory
  • 03:43exam.
  • 03:44Now let's talk about some
  • 03:46of the anatomy and your
  • 03:47probe of choice.
  • 03:49You're going to be using
  • 03:50curvilinear probe
  • 03:52as this will be a
  • 03:53deeper block,
  • 03:54and you're going to be
  • 03:55coming in at a very
  • 03:57steep angle that you may
  • 03:58not be familiar with.
  • 04:00Using your curvilinear probe,
  • 04:02find your femoral vein and
  • 04:03femoral artery.
  • 04:05From there, you're going to
  • 04:06move up and laterally,
  • 04:09finding your iliacus muscle and
  • 04:11your psoas tendon.
  • 04:13Your goal is to aim
  • 04:15tighter dissect behind the psoas
  • 04:17tendon
  • 04:18with tactile sensation of hitting
  • 04:20the ilium.
  • 04:22Once you're there, make sure
  • 04:24you ask your assistant to
  • 04:25give about one to two
  • 04:26cc of normal saline to
  • 04:29hydrodissect.
  • 04:30And when you see the
  • 04:31iliacus muscle lift up
  • 04:33from the bone, that's how
  • 04:35you know you have separated
  • 04:37the plane.
  • 04:38At this time, you may
  • 04:39now switch over to your
  • 04:40anesthetics
  • 04:42And now let's look at
  • 04:43it on a real model
  • 04:45Here we can see your
  • 04:46femoral vein and femoral artery
  • 04:48in the center
  • 04:49At the bottom of the
  • 04:50screen
  • 04:51What you're seeing is the
  • 04:52femoral head
  • 04:54Once you see this, you
  • 04:55can move
  • 04:56cranially and laterally.
  • 04:59As we move the probe
  • 05:01lateral and cranially,
  • 05:02you can identify some of
  • 05:04the muscles and other structures.
  • 05:06On screen left, you can
  • 05:08see the iliacus muscle.
  • 05:10You will also see psoas
  • 05:12tendon coming into view, which
  • 05:14looks like a circle above
  • 05:15the bone.
  • 05:16Your psoas tendon sits on
  • 05:18top of iliopsoas
  • 05:20notch,
  • 05:20which sits in between your
  • 05:23AIIS
  • 05:23and iliopsoas
  • 05:25eminence.
  • 05:27Now you're ready to block
  • 05:28the patient.
  • 05:29Step one, prep the patient.
  • 05:33Make sure you flush and
  • 05:34prep your needle. That way,
  • 05:36you don't inject air into
  • 05:38the muscle and obstructive views.
  • 05:41Step two,
  • 05:42identify the anatomy,
  • 05:44make a wheel, and stabilize
  • 05:46your nondominant
  • 05:47hand.
  • 05:48Step three,
  • 05:49poke
  • 05:50and hydro dissect.
  • 05:52Ask your assistant
  • 05:54to inject one to two
  • 05:55cc of normal saline.
  • 05:57And then when you're ready,
  • 05:59make sure to switch to
  • 06:00your anesthetics and give incremental
  • 06:03injection.
  • 06:04Don't forget to check-in with
  • 06:05your patients for signs and
  • 06:06symptoms of LAST.
  • 06:12For more information on LAST,
  • 06:14please review the material
  • 06:16sent at the beginning of
  • 06:17the nerve block series.
  • 06:19We also recommend downloading safe
  • 06:21local
  • 06:22and MD Calc for safe
  • 06:23and appropriate dosage for your
  • 06:25patient.