Inferior Lateral Genicular Artery, Posterior View

Description

Emerging from the popliteal artery in the popliteal fossa, the inferior lateral genicular artery is traced as it passes deep to the lateral head of gastrocnemius and runs inferolaterally toward the proximal tibia. From a posterior perspective, its course can be appreciated as it skirts the posterolateral capsule of the knee and turns anteriorly around the lateral tibial condyle, approaching the region of the fibular head and the proximal tibiofibular joint. Small articular and muscular branches contribute to the genicular anastomosis around the knee, with accompanying veins shown in parallel but less prominently. Orientation is clear: the vessel lies inferior to the lateral superior genicular artery territory and lateral to the midline popliteal neurovascular bundle. Posterior visualization matters because the inferior lateral genicular artery sits in the operative corridor for posterolateral corner repairs, lateral meniscal root work, and exposures that mobilize the lateral head of gastrocnemius or approach the proximal tibia. It is also a key contributor to collateral circulation when the superficial femoral or popliteal artery is stenosed or occluded, and it may be encountered or intentionally preserved during bypass planning and knee arthroplasty where periarticular perfusion affects wound healing. A small vessel. Easy to injure. Educators can use this plate to teach the popliteal fossa and genicular network in lower limb anatomy, correlating vessel trajectories with the posterior joint capsule and the proximal tibia in cadaver lab, OSCE stations, and surgical anatomy courses. It also suits orthopedic and vascular publications discussing knee collateral pathways, posterolateral approaches, or iatrogenic bleeding points during arthroscopy and ligament reconstruction. Anatomical accuracy verified by SciePro's Medical Advisory Board.