Deep Peroneal Nerve
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Alright, let's take a look at the deep peroneal
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nerve, anterior extensor compartment.
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We've got our friends Tom, Harry, and Dick.
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Tom, the tibialis anterior.
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Harry, the extensor hallucis longus, a critical
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landmark for the deep peroneal nerve, but also
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near the toe, the superficial peroneal nerve.
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And then we've got Dick, the extensor
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digitorum, and the extensor digitorum
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brevis, along with the peroneus tertius.
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Now if we go back up high, we've got the
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neurovascular bundle, and just lateral
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to the neurovascular bundle, let's go
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all the way up to the top, there's the
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neurovascular bundle, just lateral to it,
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is going to be the deep peroneal nerve.
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Let's go as high as we can go.
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Go up higher, there's the nerve.
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Now let's start to scroll down a
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little lower, and you're gonna see
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another nerve appear here laterally.
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This is that horizontal division that we've
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talked about in other vignettes called the
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lateral branch of the deep perineal nerve.
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26 00:01:05,900 --> 00:01:08,700 It's going to provide sensory supply to the
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sinus tarsi and also to the lateral ankle.
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Meanwhile, as we go down, let's trace our
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deep peroneal nerve, medial branch,
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and it's starting to make a medial track.
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And that medial track will take it underneath
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the extensor digitorum, where it'll
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almost merge with small slips of muscle.
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There is, there is the nerve right
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there, and it's right under our
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friend Harry, the extensor hallucis.
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There it is, still continuing
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over to the medial side.
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And, as you can see, it's headed towards the
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space between the great toe and the second toe.
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It's irritation here by osteophytes in
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the front of the ankle that will produce
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anterior tarsal tunnel syndrome and burning
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in the web space between toes 1 and 2.
Stephen J Pomeranz, MD
Chief Medical Officer, ProScan Imaging. Founder, MRI Online
ProScan Imaging
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