Editor,—I read with interest the article “Imaging in scoliosis”. In addition to the radiological techniques described, I would include surface shape measurement as a simple, safe, repeatable, and clinically relevant assessment. Associated with the bony deformity there is a cosmetic problem; indeed, idiopathic scoliosis is primarily a cosmetic disorder. The first sign commonly noticed by the clinician or patient is an asymmetry of backshape, resulting from axial rotation of the spine and rib cage. Treatment is aimed at the reversal or arrest of the progression of this visible deformity as well as …