Management of scoliosis both of these surgical procedures may be needed. The surgery may be done in one or two stages and, on average, takes four to eight hours. Spinal fusion is the most widely performed surgery for scoliosis. In this procedure, bone [either harvested from elsewhere in the body (autograft) or from a donor (allograft)] is grafted to the vertebrae so when they heal, they form one solid bone mass and the vertebral column becomes rigid. This prevents worsening of the curve, at the expense of some spinal movement. This can be performed from the anterior (front) aspect of the spine by
Supernumerary body part two or more different populations of genetically distinct cells that originated in different zygotes that have merged; anatomical structures are typically mixed depending on which cells are prevalent in different body parts, for example plants can have two different types of flowers. A mosaic is a genetic anomaly similar in nature and effects to a chimera: genetically different populations of cells within one organism, originated from some propagated mutation of a single cell rather than from outside sources. In Hindu mythology, additional limbs and heads are considered a sign of power. In Greek mythology, Artemis, the goddess of fertility, was