Calcaneofibular ligament

Looks like

A cord-like band from the tip of the outer ankle bone down and back to the heel bone.

What it does

Stops the heel rolling inward; spans both the ankle and the subtalar joint.

Keeping it well

Torn in more severe ankle sprains after the anterior talofibular ligament. Repeated giving way needs rehabilitation, sometimes surgery.

Related conditions

• Ankle sprain
• Buerger's disease (thromboangiitis obliterans)
• Chronic venous insufficiency
• Clubfoot (talipes equinovarus)
• Flat feet (pes planus)
• Ganglion cyst
• Gout
• Haemophilia & bleeding disorders
• Hammer toe and claw toe
• Lyme disease
• Lymphatic filariasis (elephantiasis)
• Lymphoedema
• Marfan syndrome & connective tissue disorders
• Morton's neuroma
• Osteoarthritis
• Psoriatic arthritis
• Restless legs syndrome
• Rheumatic fever & rheumatic heart disease
• Rheumatoid arthritis
• Systemic lupus erythematosus
• Temporomandibular joint disorder
• Varicose veins
• Venomous snakebite