512 items found Clear All 63 of 64 pages Previous Page Next Page Flatfoot Condition Pages Flat foot (pes planus) is a condition in which the arch of the foot disappears when a child stands, or when the entire sole of the child’s foot contacts the ground. Arthrogryposis Condition Pages Arthrogryposis multiplex congenita (AMC) is a condition that leads to a limited range of joint motion. One in 3,000 children are born with arthrogryposis. Patellar Instability and Patellofemoral Pain Condition Pages Patellar instability occurs when the kneecap (also known as the patella) slips out of where it sits in the knee joint (the trochlear groove). Osteomyelitis Condition Pages Osteomyelitis is a bone infection, usually caused by bacteria. Osteomyelitis in children usually occurs in long bones, but it can affect any bone in the body. Osteogenesis Imperfecta Condition Pages Osteogenesis imperfecta (also known as brittle bone disease or OI) is a genetic condition that causes a defect in a protein found in bones called collagen. Osgood-Schlatter Disease Condition Pages Osgood-Schlatter disease is a common cause of knee pain in children and teens. It can cause a painful bump to develop just below the knee area. Macrodactyly Condition Pages Macrodactyly is a rare condition in which an infant’s fingers or toes are abnormally large because of overgrowth of bone and soft tissue. Knock Knees Condition Pages Knock knee (also known as genu valgum or valgus knee deformity) is a condition in which the knees touch while the ankles are apart.