Orthotics (also known as orthoses or arch supports) are very successful medical devices used to help correct foot disorders. They are a prescription appliance that improves foot movement, just like eyeglasses improve vision. Orthotics are actually custom-made shoe inserts that relieve your symptoms by altering and controlling abnormal foot movement, and compensate for deformities in your feet.
Even certain hip and knee or back problems can be relieved by orthotics which compensate for incorrect foot movement. Orthotics also help protect the tender areas of your foot from harsh, constant use. Sometimes the need for surgery may be able to be delayed with the aid of orthotics, and following surgery, these devises serve to maintain the correction.