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Lateral Sacral Veins

venae sacrales laterales

The lateral sacral veins accompany the lateral sacral arteries on the anterior sacral surface, draining the sacral muscles, sacral canal contents, and posterior pelvic structures into the internal iliac veins. They form part of the presacral venous plexus and communicate with the internal vertebral venous plexus through the sacral foramina.

Region: Lower Back

Clinical Relevance

Clinical Notes

The lateral sacral veins contribute to the presacral venous plexus that is the source of catastrophic haemorrhage during anterior sacral dissection in rectal surgery. The veins communicate with the sacral foraminal veins, making haemostasis in this region particularly challenging. Sacrectomy for tumour resection requires careful ligation of these veins. They are also relevant in sacral insufficiency fracture evaluation where venous congestion contributes to oedema pattern.

Pathology

Common Injuries & Conditions

Presacral Venous Haemorrhage from Lateral Sacral Veins

Tearing of lateral sacral veins during anterior sacral dissection producing rapid haemorrhage from the sacral foraminal communicating vessels, managed with direct pressure, bone wax, and haemostatic agents.