Superior Medial Genicular Artery

Description

Arising from the popliteal artery in the posterior knee, the superior medial genicular artery sweeps superiorly and medially to contour the medial femoral condyle before turning anteriorly toward the periarticular arterial anastomosis. Its arcuate course tracks just proximal to the medial epicondylar region, where it travels deep to the superficial fascia and in close association with the distal vastus medialis and medial retinacular tissues. Adjacent venous channels accompany the artery and converge toward the popliteal vein, while the tibial and femoral shafts remain lightly indicated for orientation. Red arterial trunks and smaller arteriolar branches contrast with blue draining veins. For surgical anatomy, the superior medial genicular artery is a consistent landmark because it contributes to the genicular network that maintains collateral flow when the popliteal segment is compromised, and it is also a named vessel at risk during medial approaches to the distal femur and knee. Ligation or inadvertent injury can matter in total knee arthroplasty, medial parapatellar arthrotomy, and procedures addressing medial femoral condyle fractures, where bleeding can obscure the field and postoperative hemarthrosis is a real concern. Its relationship to the medial capsule and retinaculum also ties it to synovial perfusion and postoperative wound healing. Small vessel, big consequences. Use this plate in gross anatomy teaching of the lower limb, in orthopedic and sports-medicine modules covering periarticular blood supply, or in operative manuals illustrating medial knee exposures and the genicular anastomosis around the femoral condyles. It also suits patient-education materials explaining vascular injury patterns after knee trauma and popliteal artery compromise. Anatomical accuracy verified by SciePro's Medical Advisory Board.