This book focuses on classification and category of etiology, clinical manifestations, diagnosis, and orthopedic principles of different types of limb deformities in China. The relativity of the definition of limb deformity, the cognitive history of human beings on limb deformity and disability for thousands of years, and the characteristics and classification methods of the diseases category of limb deformity in Chinese population are covered in the chapters, in which the dynamic nature of the occurrence and development of limb deformity from the perspective of biological evolution and auxology, is analyzed too. Written by experts with wealthy of experience, it will be an ideal reference for physicians involved in the diagnosis and treatment of limb deformity.