Lateral superior genicular artery

Lateral superior genicular artery

The course of the lateral superior genicular artery (LSGA) in relation to the knee joint. Image adapted from Gray's Anatomy.

The Lateral superior genicular artery (LSGA) is a small branch of the popliteal artery that supplies blood to the knee joint. It is one of the five genicular arteries, which also include the medial superior genicular artery, lateral inferior genicular artery, medial inferior genicular artery, and the middle genicular artery.

Anatomy

The LSGA arises from the popliteal artery, just above the level of the knee joint. It travels laterally around the femur, passing through the vastus lateralis muscle and the iliotibial band. It then descends to supply the lateral aspect of the knee joint.

Clinical significance

The LSGA is important in surgical procedures involving the knee joint, such as total knee arthroplasty. Its location and course must be carefully considered to avoid inadvertent injury.

See also

• Genicular arteries
• Popliteal artery
• Knee joint

References

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