Earlier this year the New Statesman ran an article about a medical study of a popular shoulder operation. In its own terms, the study was a great success; it showed that the operation does no real good. As a result, much unnecessary surgery will be avoided in future. The CSAW study (âCan Shoulder Arthroscopy Work?â) has been widely acclaimed as a model for future research. At the same time, however, this study highlights some disturbing issues ab..