Adductor canal

The adductor canal (also known as the subsartorial canal or Hunter's canal) is an aponeurotic tunnel in the middle third of the thigh giving passage to parts of the femoral artery, vein, and nerve. It extends from the apex of the femoral triangle to the adductor hiatus.

Adductor canal
The femoral artery. (Canal not labeled, but region visible at center right.)
Cross-section through the middle of the thigh (the right thigh if seen from below)
Details
Identifiers
Latin	canalis adductorius
TA98	A04.7.03.006
TA2	2611
FMA	58781
Anatomical terminology [edit on Wikidata]

Structure

The adductor canal extends from the apex of the femoral triangle to the adductor hiatus. It is an intermuscular cleft situated on the medial aspect of the middle third of the anterior compartment of the thigh, and has the following boundaries:

• medial wall - sartorius.
• posterior wall - adductor longus and adductor magnus.
• anterior wall - vastus medialis.

It is covered by a strong aponeurosis which extends from the vastus medialis, across the femoral vessels to the adductor longus and magnus. Lying on the aponeurosis is the sartorius (tailor's) muscle.

Contents

The canal contains the subsartorial artery (distal segment of the femoral artery), subsartorial vein (distal segment of the femoral vein), and branches of the femoral nerve (specifically, the saphenous nerve, and the nerve to the vastus medialis).^[1][2][3] The femoral artery with its vein and the saphenous nerve enter this canal through the superior foramen. Then, the saphenous nerve and artery and vein of genus descendens exit through the anterior foramen, piercing the vastoadductor intermuscular septum. Finally, the femoral artery and vein exit via the inferior foramen (usually called the hiatus) through the inferior space between the oblique and medial heads of adductor magnus.^[4]

Clinical significance

The saphenous nerve may be compressed in the adductor canal.^[5] The adductor canal may be accessed for a saphenous nerve block, often used to treat pain caused by this compression.^[5]

History

The eponym "Hunter's canal" is named for John Hunter.^[6][7]

Additional images

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  Adductor canal
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  Adductor canal

References

This article incorporates text in the public domain from page 627 of the 20th edition of Gray's Anatomy (1918)

1. Amarnath C and Hemant Patel (2023). Comprehensive Textbook of Clinical Radiology - Volume III: Chest and Cardiovascular system. Elsevier Health Sciences. ISBN 9788131263617. Page 1072
2. Sauerland, Eberhardt K.; Patrick W. Tank; Tank, Patrick W. (2005). Grant's dissector. Hagerstown, MD: Lippincott Williams & Wilkins. p. 128. ISBN 0-7817-5484-4.
3. Sambrook, Philip (2010-01-01), Sambrook, Philip; Schrieber, Leslie; Taylor, Thomas; Ellis, Andrew M. (eds.), "Bone Structure and Function in Normal and Disease States", The Musculoskeletal System (Second Edition), Churchill Livingstone, pp. 61–76, doi:10.1016/b978-0-7020-3377-3.00005-6, ISBN 978-0-7020-3377-3, retrieved 2021-02-18
4. А.В. Николаев. (2007). Топографическая анатомия и оперативная хирургия. Москва: ГЭОТАР-Медиа (GEOTAR-Media). pp. 174–176. ISBN 978-5-9704-1207-7.
5. Zhang, Yi (2011-01-01), Lennard, Ted A.; Walkowski, Stevan; Singla, Aneesh K.; Vivian, David G. (eds.), "27 - Lower Extremity: Saphenous Nerve Block", Pain Procedures in Clinical Practice (Third Edition), Saint Louis: Hanley & Belfus, pp. 267–270, doi:10.1016/b978-1-4160-3779-8.10027-2, ISBN 978-1-4160-3779-8, retrieved 2021-02-18
6. synd/105 at Who Named It?
7. "CHAPTER 15: THE THIGH AND KNEE". Archived from the original on 21 January 2008. Retrieved 2008-01-27.

External links

• Anatomy photo:12:07-0103 at the SUNY Downstate Medical Center - "Anterior and Medial Thigh Region: Sartorius Muscle and the Adductor Canal"
• Anatomy photo:12:08-0105 at the SUNY Downstate Medical Center - "Anterior and Medial Thigh Region: Structures of the Adductor Canal"