Hello and welcome to the Zero to Finals podcast.

My name is Tom and in this episode I'm going to be talking to you about Moralgia Parasthetica.

And if you want to find written notes on this topic, you can find them at 0.0.orgas.com slash Moralgia Parathetica

or in the orthopaopedic section of the Zero

Definals surgery book. So let's get straight into it. Moralgia parastetica refers to localized sensory

symptoms of the outer thigh, which is caused by compression of the lateral femoral cutaneous nerve.

This is a mononeuropathy, meaning that only a single nerve is affected.

Let's start with some basic anatomy.

The lateral femoral cutaneous nerve originates from varying combinations of L1, L2 and L3 nerve roots.

It comes from behind the soas muscle, then it runs around the surface of the Iliacus muscle,

and then it runs under the inguinal ligament onto the thigh, just medial and inferior

to the anterior superior iliac spine, or the aces.

The lateral femoral cutaneous nerves supply sensory innovation to the upper outer thigh.

Pressure, deformity or trauma to the nerve can occur at several places along its root.

Notably, this can occur where it passes below the inguinal ligament.

It's this pressure, deformity or trauma that causes malfunctioning of the nerve and the symptoms of maralgia paracetica.

The lateral femoral cutaneous nerve only carries sensory symptoms.

Therefore, there are no motor symptoms associated with Maralgia Parasetica.

Let's talk about the presentation.

Patients present with abnormal sensations, which is called dysasthesia and a loss of sensation

which is called aniseasea in the distribution of the lateral femoral cutaneous nerve.

And this affects the skin of the upper outer thigh.

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