Rigid LSO braces, or lumbosacral orthoses as they are sometimes referred to by physicians, are mainly used to treat lower back pain and stabilize the lumbar spine following an accident or surgery. Although there are several types of rigid braces (customized to meet specific needs) most share a basic structure. A back brace is simply a medical device designed to restrict spine and back motion to support recovery. Some braces are referred to as chair-back braces or body jacket as they are attached to the back using strap backs that keep the brace in position and also apply a little pressure. Anyone can use a brace if they experience pain and stress on their lumbar and spinal regions.