Neurovascular bundle structure - Two types: superficial and deep bundles - Superficial bundles do not include arteries - Deep bundles often include arteries - Superficial bundles consist primarily of capillaries and nerves - Deep bundles have smooth muscle and connective tissue structures outside the endothelium

Function of neurovascular bundles - Ensure continuous supply of oxygenated blood to important nerves - Useful for axons - Crucial role in maintaining nerve health and function - Provide oxygen and nutrients to nerves - Help remove waste products from nerves

Clinical significance of neurovascular bundles - Both superficial and deep bundles are at risk during surgical incisions - Protecting bundles during surgery is essential to prevent neurological damage - Great saphenous vein and superficial peroneal nerve are at risk in leg surgery - Posterior tibial artery is the main deep bundle at risk - Preservation of neurovascular bundles during prostate surgery improves urinary continence and erectile function

Neurovascular bundles in leg surgery - Great saphenous vein and accompanying nerve at risk - Superficial peroneal nerve also at risk - Superficial peroneal nerve originates from common peroneal nerve - Posterior tibial artery is the main deep bundle at risk - Posterior tibial artery gives rise to medial and lateral plantar arteries

Neurovascular bundles in prostate surgery - Preservation of bundles during nerve-sparing radical prostatectomy improves urinary continence and erectile function - Recommended in elderly men and those with pre-existing erectile dysfunction - Surgeries with preserved bundles have lower frequency of positive margins - Positive margins occur in only 5.8 percent of surgeries with preserved bundles - Preserving neurovascular bundles is important for post-surgery quality of life