Posterior Perspective of the Inferior Medial Genicular Artery

Description

Centered on the popliteal fossae of both lower limbs, the inferior medial genicular artery branches from the popliteal artery and tracks medially along the posterior aspect of the knee before curving around the medial side of the proximal tibia (tibial head region). Proximal to it, the femoral artery transitions through the adductor hiatus to become the popliteal artery, which lies deep in the fossa with the popliteal vein typically superficial to it and the tibial nerve most superficial and slightly lateral. Distally, the popliteal vessel continues toward its terminal division into the anterior tibial artery and posterior tibial artery, with paired venae comitantes accompanying the arteries. Posterior anatomy at the knee matters because the genicular branches participate in the periarticular anastomosis that maintains collateral flow during flexion and in the presence of superficial femoral or popliteal occlusive disease. Orthopedic and sports procedures around the medial proximal tibia, including high tibial osteotomy and posterior cruciate ligament reconstruction with tibial tunnel work, place the inferior medial genicular artery at risk due to its close relationship to the posteromedial capsule and adjacent bone. Small vessel, big consequences. This posterior perspective also aligns with the operative corridor used for popliteal artery exposure in vascular repair after knee dislocation. Use this plate to teach popliteal fossa contents and genicular collateral pathways in gross anatomy, lower limb dissection, or surgical anatomy courses, and to support figures in orthopedic, vascular surgery, and interventional radiology publications discussing popliteal aneurysm, traumatic arterial injury, or bypass planning. It also fits clinical education materials on posterior knee approaches and safe zones for medial tibial work. Anatomical accuracy verified by SciePro's Medical Advisory Board.