The first edition of the book was written with an intent to impart basic orthopedic knowledge among medical fraternity in general and medical students in particular. The aim was to provide undergraduates with important concepts in orthopedics which would also serve as basic knowledge for postgraduates. With newer editions of any book, comes an unspoken requirement and responsibility. It is that of updating deficiencies that existed in the previous edition and also incorporating current information and practices. With that in mind, a few new chapters have been included on Poliomyelitis and Cerebral Palsy. Several short topics have also been included. An effort has also been made to simplify and re-write certain topics so as to precisely and effectively convey information. This includes the addition of flow charts wherever possible.