An injury to the Achilles tendon that causes pain in the back of the leg

Achilles Tendinosis

A condition in which the Achilles tendon degenerates and becomes inflamed


A complete gap between the upper and lower portions of the Achilles tendon

Ankle Instability

A condition in which the ankle has too much motion "looseness" and easily twists or "gives out"

Ankle Sprain

Tearing of the ligaments of the ankle, typically on the lateral (outside) part of the ankle

Broken Ankle

A partial or complete break in the ankle bone that can range from less serious injuries to severe, shattering-type breaks

Charcot-Marie-Tooth Disease

Nerve-related disorders that are passed down through families; early symptoms often are seen around the foot and ankle

Chronic Lateral Ankle Pain

Recurring pain on the outer side of the ankle that often develops after an injury

High Ankle Sprain

Tearing and damage to the high ankle ligaments; also known as a syndesmotic injury

Insertional Achilles Tendinitis

Degeneration of the fibers of the Achilles tendon where the tendon inserts into the heel bone

Os Trigonum Syndrome

A small extra bone in the back of the ankle that results in pain due to pinching of this bone or the surrounding tissue

Osteochondral Lesion

Injuries to the talus (the bottom bone of the ankle joint) that involve both the bone and the overlying cartilage

Peroneal Tendinosis

Enlargement and thickening with swelling of the tendons that run on the outside of the ankle

Pilon Fracture

A high-impact injury in which the leg bones break at the ankle joint; commonly caused by a fall from a height or car accident

Sinus Tarsi Syndrome

Painful inflammation of the joint below the ankle that allows the foot to move from side to side

Talus Fracture

A break in the ankle bone that connects the leg and the foot

The American Orthopaedic Foot & Ankle Society (AOFAS) offers information on this site as an educational service. The content of FootCareMD, including text, images, and graphics, is for informational purposes only. The content is not intended to substitute for professional medical advice, diagnoses or treatments. If you need medical advice, use the "Find a Surgeon " search to locate a foot and ankle orthopaedic surgeon in your area.