The many arteries making up the peri-articular anastomosis around the knee provide an important collateral circulation for bypassing the popliteal artery when the knee joint has been maintained too long in a fully flexed position or when the vessels are narrowed or occluded.
Reproduced with permission from: Moore KL, Dalley AF, Agur AMR. Clinically Oriented Anatomy, 7th Edition. Lippincott Williams & Wilkins, Philadelphia 2013. Copyright © 2013 Lippincott Williams & Wilkins.
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