Trochanteric anastomosis

Trochanteric anastomosis is a network of blood vessels located in the hip region, specifically around the trochanter of the femur. This anastomosis plays a crucial role in providing blood supply to the head and neck of the femur, as well as the surrounding hip joint.

Anatomy

The trochanteric anastomosis is formed by the confluence of several arteries and their branches. These include:

• The superior gluteal artery, which arises from the internal iliac artery.
• The inferior gluteal artery, also a branch of the internal iliac artery.
• The medial circumflex femoral artery, which arises from the femoral artery.
• The lateral circumflex femoral artery, another branch of the femoral artery.
• The transverse branch of the lateral circumflex femoral artery.

These arteries and their branches form a network of vessels around the trochanter, providing a rich blood supply to the region.

Clinical Significance

The trochanteric anastomosis is of significant clinical importance due to its role in maintaining blood supply to the femoral head. Disruption of this blood supply, such as in the case of a hip fracture, can lead to avascular necrosis of the femoral head, a serious condition that can result in significant pain and disability.

Furthermore, the trochanteric anastomosis can serve as a collateral circulation pathway in cases of obstruction or damage to the main arteries supplying the lower limb. This can help to preserve blood flow and prevent tissue ischemia.

See Also

• Circumflex femoral arteries
• Gluteal arteries
• Hip joint