Scoliosis successful management of diseases causing spinal deformity, many patients suffered from scoliosis with no known cause. The unknown cause was eventually determined to be idiopathic scoliosis. Alfred Shands Jr., an orthopedic surgeon, discovered that two percent of patients had non-disease related scoliosis. Idiopathic scoliosis, also known as the "cancer of orthopedic surgery", was determined to be dangerous because there was no current treatment. The condition needed to be detected in patients promptly so treatment could be developed in time to halt its progression. As a result, schools made it mandatory for students to have screenings for scoliosis. Early on, set
Supernumerary body part considered to have lost much or all of their original function through evolution. These body parts can be classed as additional to the required functioning of the body. In human anatomy the vermiform appendix is sometimes classed as a vestigial remnant. Prosthesis is an artificial extension that replaces a body part, and cybernetics is the study of computer technology in relation to organisms which can include replacement or additional body parts. Body integrity identity disorder (BIID) is a psychiatric disorder in which a person thinks that they have one or more additional limbs than they should, despite having two arms