Care of spinal conditions has become increasingly complex and confusing. Classification systems can help in understanding the subject matter at hand, but have exploded in numbers and complexity. Attempts at extracting classifications of spinal disorders are cumbersome and require careful study of numerous reference books without achieving a comprehensive overview in the end. This one of a kind reference text summarizes over 185 spine classification or severity easures with standardized art work, provides ratings and critical evaluations of pertinent strengths and weaknesses in a concise and systematic fashion and provides help in: Studying spinal disease conditions Preparing informed treatment decisions Communicating individual patient disease severity Evaluating publications regarding treatment results and success Formulating spinal research projects Providing a scientific reference tool