Superior fibular retinaculum

Looks like

A band from the back of the outer ankle bone to the heel bone.

What it does

Holds the fibularis tendons in the groove behind the outer ankle bone.

Keeping it well

It can tear in an ankle sprain, letting the tendons snap forward over the bone; that often needs surgery.

Related conditions

• Buerger's disease (thromboangiitis obliterans)
• Chronic venous insufficiency
• Clubfoot (talipes equinovarus)
• Flat feet (pes planus)
• Ganglion cyst
• Gout
• Hammer toe and claw toe
• Lymphatic filariasis (elephantiasis)
• Lymphoedema
• Morton's neuroma
• Restless legs syndrome
• Varicose veins
• Venomous snakebite