Inferior Calcaneal Nerve (Baxter Nerve): Difference between revisions
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|conditions=[[Baxter's Nerve Entrapment]] | |conditions=[[Baxter's Nerve Entrapment]] | ||
}}The first branch of the lateral plantar nerve is also known as the inferior calcaneal nerve or Baxter's nerve. | }}The first branch of the lateral plantar nerve is also known as the inferior calcaneal nerve or Baxter's nerve. | ||
== Related Structures == | |||
The posterior tibial nerve ramifies into the medial and lateral plantar nerves. These two nerves exit the tarsal tunnel and continue to the plantar aspect of the foot. | |||
The medial plantar nerve runs anterior to the lateral plantar nerve. It supplies sensory information to the medial two thirds of the plantar foot, and motor innervation to the flexor digitorum brevis, abductor hallucis, flexor hallucis brevis, and first lumbrical. | |||
The lateral plantar nerve supplies sensation to the lateral plantar aspect of the foot, 5th toe, and lateral half of the 4th toe. It supplies motor innervation to the remaining foot muscles that aren't innervated by the medial plantar nerve. | |||
== Course == | == Course == | ||
It arises from the lateral plantar nerve at various levels under the deep fascia of the [[Abductor Hallucis]] muscle. It runs vertically in between the [[Abductor Hallucis]] and [[Quadratus Plantae]] and then makes a sharp 90 degree turn horizontally. It passes laterally under the [[Calcaneus]] to supply the [[Abductor Digiti Minimi]] muscle. | Baxter's nerve is first branch of the lateral plantar nerve. It arises from the lateral plantar nerve at various levels under the deep fascia of the [[Abductor Hallucis]] muscle. It runs vertically in between the [[Abductor Hallucis]] and [[Quadratus Plantae]] and then makes a sharp 90 degree turn horizontally. It passes laterally under the [[Calcaneus]] to supply the [[Abductor Digiti Minimi]] muscle. | ||
== Innervation == | == Innervation == | ||
Revision as of 10:33, 16 April 2022
| |
| Inferior Calcaneal Nerve (Baxter Nerve) | |
|---|---|
| Nerve Type | Mixed nerve |
| Origin | First branch of lateral plantar nerve |
| Course | Passes between Abductor Hallucis and Quadratus Plantae, and along the medial border of the long plantar ligament. |
| Sensory innervation | Long plantar ligament, calcaneal periosteum, and anterior calcaneal tubercle |
| Motor innervation | Abductor Digiti Minimi, Quadratus Plantae, Flexor Digitorum Brevis |
| Conditions | Baxter's Nerve Entrapment |
The first branch of the lateral plantar nerve is also known as the inferior calcaneal nerve or Baxter's nerve.
Related Structures
The posterior tibial nerve ramifies into the medial and lateral plantar nerves. These two nerves exit the tarsal tunnel and continue to the plantar aspect of the foot.
The medial plantar nerve runs anterior to the lateral plantar nerve. It supplies sensory information to the medial two thirds of the plantar foot, and motor innervation to the flexor digitorum brevis, abductor hallucis, flexor hallucis brevis, and first lumbrical.
The lateral plantar nerve supplies sensation to the lateral plantar aspect of the foot, 5th toe, and lateral half of the 4th toe. It supplies motor innervation to the remaining foot muscles that aren't innervated by the medial plantar nerve.
Course
Baxter's nerve is first branch of the lateral plantar nerve. It arises from the lateral plantar nerve at various levels under the deep fascia of the Abductor Hallucis muscle. It runs vertically in between the Abductor Hallucis and Quadratus Plantae and then makes a sharp 90 degree turn horizontally. It passes laterally under the Calcaneus to supply the Abductor Digiti Minimi muscle.
Innervation
It is a mixed nerve.
Motor supply is to the Abductor Digiti Minimi, and occasionally to the Flexor Digitorum Brevis and lateral half of the Quadratus Plantae
Sensory supply is to the calcaneal periosteum, long plantar ligament, and adjacent vessels.
Variation
It can originate directly from the Posterior Tibial Nerve
