The Lisfranc Joint The Lisfranc joint is the point at which the metatarsal bones (long bones that lead up to the toes) and the tarsal bones (bones in the arch) connect. The Lisfranc ligament is a tough band of tissue that joins two of these bones. This is important for maintaining proper alignment and

What Is Osteoarthritis? Osteoarthritis is a condition characterized by the breakdown and eventual loss of cartilage in one or more joints. Cartilage (the connective tissue found at the end of the bones in the joints) protects and cushions the bones during movement. When cartilage deteriorates or is

Osteomyelitis (an infection of the bone) can be caused by a variety of microbial agents (bacteria, fungus), the most common of which is staphylococcus aureus. This serious infection can occur from a number of sources: • It may enter bone through an injury, such as an open fracture with the bone

Osteoporosis, which means “porous bone,” is a condition in which bones become weak and thin due to lack of calcium. People with osteoporosis have an increased risk of bone fractures (breaks).  Osteoporosis is often called the “silent disease” because many people do not realize they have it.

What is Peripheral Arterial Disease? Commonly referred to as “poor circulation,” Peripheral Arterial Disease (P.A.D.) is the restriction of blood flow in the arteries of the leg. When arteries become narrowed by plaque (the accumulation of cholesterol and other materials on the walls of the arteries),

What Are the Peroneal Tendons? A tendon is a band of tissue that connects a muscle to a bone. The two peroneal tendons in the foot run side-by-side behind the outer ankle bone. One peroneal tendon attaches to the outer part of the midfoot, while the other tendon runs under the foot and attaches near

Pigeon toes (intoeing) is a condition in which the feet point inward when walking. It is commonly seen in children and may resolve in very early childhood with no treatment or intervention.  The child should be examined by a foot and ankle surgeon if the intoeing is causing significant tripping, difficulty

What is the Plantar Fibroma?  A plantar fibroma is a fibrous knot (nodule) in the arch of the foot. It is embedded within the plantar fascia, a band of tissue that extends from the heel to the toes on the bottom of the foot. A plantar fibroma can develop in one or both feet, is benign (non-malignant),

What Is PTTD?The posterior tibial tendon serves as one of the major supporting structures of the foot, helping it to function while walking. Posterior tibial tendon dysfunction (PTTD) is a condition caused by changes in the tendon, impairing its ability to support the arch. This results in flattening

What Is Hallux Rigidus? Hallux rigidus is a disorder of the joint located at the base of the big toe. It causes pain and stiffness in the joint, and with time it gets increasingly harder to bend the toe.  ‘Hallux” refers to the big toe, while “rigidus” indicates that the toe is rigid and cannot

What Is a Puncture Wound? Puncture wounds are not the same as cuts. A puncture wound has a small entry hole caused by a pointed object, such as a nail that you’ve stepped on. In contrast, a cut is an open wound that produces a long tear in the skin. Puncture wounds require different treatment from

A rash on the foot can have a variety of causes. It may be a form of eczema, which is usually very itchy. It also may be an allergic reaction to something with which your feet have come into contact, such as materials in your shoe or poison ivy. Another common reason for a foot rash is athlete’s foot,

Raynaud’s phenomenon is a condition which results in a bluish-white discoloration of fingers and toes, often as a result of exposure to cold. Stress, smoking, and certain medications may trigger or worsen symptoms. The color change, which occurs from spasms in small blood vessels, becomes red and then

An uncontrolled urge to move one’s legs is referred to as "restless legs." This can happen while trying to sleep, while traveling, or any time the legs are at rest. There is no known test to diagnose the problem; instead, the foot and ankle surgeon considers the individual’s history to determine

What is Rheumatoid Arthritis? Rheumatoid arthritis (RA) is a disease in which certain cells of the immune system malfunction and attack healthy joints. RA causes inflammation in the lining (synovium) of joints, most often the joints of the hands and feet. The signs of inflammation can include pain,

What is a Sesamoid? A sesamoid is a bone embedded in a tendon. Sesamoids are found in several joints in the body. In the normal foot, the sesamoids are two pea-shaped bones located in the ball of the foot, beneath the big toe joint.   Acting as a pulley for tendons, the sesamoids help the big