This is a swelling of a fluid-filled sac in the back of your elbow. This sac is called the "olecranon bursa." You have similar sacs near other large joints throughout your body. They act as cushions between your bones and your soft tissues.

Regional anesthesia makes an area of the body numb to prevent the patient from feeling pain during or after a medical procedure. It can completely block sensation to a large area of the body.

This scan lets doctors see inside your body without using radiation. Instead, MRIs use magnets and radio waves. An MRI shows clear views of your soft tissues. It can show cancer and other problems.

This condition, also known as Little League elbow, is an injury to the medial epicondyle growth plate. It causes pain in the elbow, and may cause swelling. This condition is most common in young baseball pitchers.

If you are an athlete, or if you work with your arms and hands, your elbows may be at risk for an overuse injury. This is an injury caused by repetitive motions.

This procedure is designed to repair a torn elbow ligament - an injury typically caused by strong, repetitive overhead throwing motions of the arm or by dislocation of the elbow. It was first performed in 1974 on baseball pitcher Tommy John.

This condition is a painful inflammation of the iliotibial band, a thick, tendon-like portion of a muscle that travels from the hip down the outer side of the thigh to the knee.

This procedure is used to remove excess bone growth and reshape the hip joint to allow for proper joint movement.

This condition, which most often occurs as a complication of long-term diabetes, is a progressive degenerative condition that affects the foot. It is characterized by nerve damage in the foot along with severely weakened foot bones.

This outpatient procedure, performed under general or regional anesthesia, alleviates compression of the radial nerve. This nerve travels along the outer side of the elbow and down to the hand.

During this procedure, your damaged hip joint is replaced with implants that recreate the ball and socket of a healthy hip. This can reduce pain and restore your hip function.

This bony bump forms on the outer side of the foot at the base of the fifth toe. Like a traditional bunion, a bunionette can be sore and painful. The skin covering the bump can become red and irritated.

This is a collapse of your foot's arch. It happens over time, usually in just one foot but sometimes in both. As your arch collapses, the bones of your foot may gradually shift out of alignment. This can cause pain and other problems.

This disease, one of the most common inherited neurological disorders, affects motor and sensory nerves throughout the body. It is usually not life-threatening, and rarely affects the brain.

Ligaments are fibrous, elastic bands of tissue that connect and stabilize the bones. An ankle sprain is a common, painful injury that occurs when one or more of the ankle ligaments is stretched beyond the normal range of motion.

An accessory navicular is an extra bone, joined to the navicular by fibrous tissue or cartilage, that can develop in certain people. This bone can cause pain, and may be susceptible to injury.

This deformity affects the joint at the base of the big toe. It is a bony bump beneath the skin on the inner side of the foot. A bunion starts small, but over time it can grow to become very large. Bunions are more common in women.

This condition is an abnormally high arch of the foot that results in an excessive amount of body weight being directed to the ball and heel of the foot.

This outpatient procedure, performed under general or regional anesthesia, repositions the ulnar nerve to prevent it from sliding against or becoming pinched by the medial epicondyle (the bony bump on the inner side of the elbow). Ulnar nerve

This is a type of injury that causes knee pain in children. It's an inflammation of a growth plate in the tibia. Growth plates are places where new bone tissue forms. They are found in the long bones of growing children.