Inferior Lateral Genicular Artery, Lateral View

Description

Oriented to the lateral aspect of the male knee, the inferior lateral genicular artery arises from the popliteal artery posterior to the joint and courses laterally, passing deep to the lateral head of gastrocnemius and beneath the lateral tibial plateau. Near the level of the fibular head it turns anteriorly, running close to the lateral collateral ligament and the tendon of biceps femoris before contributing to the periarticular genicular anastomosis around the capsule. Red arterial branches contrast with blue venous channels draining toward the popliteal vein. Small arterioles and venules cluster along the joint line. For surgeons working laterally, this vessel matters because it sits in the corridor used for lateral meniscus repair, tibial plateau fracture fixation, and approaches to the posterolateral corner, where retractors and capsular releases can injure it and produce brisk hemarthrosis. Its anastomotic connections with the superior lateral genicular and anterior tibial recurrent arteries also explain why segmental popliteal disease can still leave a surprising amount of periarticular perfusion, and why embolization planning for post arthroscopy bleeding needs an accurate branch map. Expect it just inferior to the joint line. Use this asset in lower limb anatomy teaching to anchor the concept of the genicular network, or in orthopaedic and sports medicine materials discussing arthroscopy portals, lateral collateral ligament reconstruction, or management of tibial plateau fractures. It also fits radiology and interventional references illustrating targeted angiography or embolization for genicular artery injury after trauma or surgery. Anatomical accuracy verified by SciePro's Medical Advisory Board.