Fibrous DysplasiaFibrous dysplasia is a benign (noncancerous) bone condition in which abnormal fibrous tissue develops in place of normal bone. As these areas of fibrous tissue grow and expand over time, they can weaken the bone — causing it to fra

Growth Plate FracturesThe bones of children and adults share many of the same risks for injury. But because they are still growing, a child's bones are also subject to a unique injury called a growth plate fracture.Growth plates are areas of cart

Fractures of the Proximal TibiaA fracture, or break, in the shinbone just below the knee is called a proximal tibia fracture. The proximal tibia is the upper portion of the bone where it widens to help form the knee joint.In addition to the broke

Olecranon FracturesAn olecranon fracture is a break in the bony "tip" of the elbow. This pointy segment of bone is part of the ulna, one of the three bones that come together to form the elbow joint.The olecranon is positioned directly under the

Talus FracturesA talus fracture is a break in one of the bones that forms the ankle. This type of fracture often occurs during a high-energy event, such as a car collision or a fall from a significant height.Because the talus is important for ank

Vitamin DFact Sheet for Health ProfessionalsWoman shopping for dietary supplementsHave a question?Ask ODS: ods.od.nih.gov/contactTable of ContentsIntroductionReference IntakesSources of Vitamin DVitamin D Intakes and StatusVitamin D Defici

Rheumatoid Arthritis of the Foot and AnkleRheumatoid arthritis is a chronic disease that attacks multiple joints throughout the body. It most often starts in the small joints of the hands and feet, and usually affects the same joints on both sides

Brachial Plexus InjuriesThe brachial plexus is a network of intertwined nerves that control movement and sensation in the arm and hand. A traumatic brachial plexus injury involves sudden damage to these nerves, and may cause weakness, loss of feeli