The posterior interosseous recurrent artery ascends from the posterior interosseous artery in the forearm to anastomose with the inferior lateral collateral artery at the lateral elbow, forming part of the lateral elbow arterial network. It lies on the posterior aspect of the lateral elbow.
The posterior interosseous recurrent artery is a component of the lateral elbow anastomosis that provides collateral circulation after brachial artery ligation or injury above the bifurcation. It supplies blood to the lateral elbow capsule and periosteum. This vessel may be encountered during lateral elbow approaches and during radial tunnel surgery at the posterior interosseous nerve level.
The posterior interosseous recurrent artery provides collateral lateral elbow perfusion when the brachial artery is occluded, maintaining lateral elbow tissue viability through its anastomosis with the inferior lateral collateral artery.
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