The image is a page from a book or document, specifically page 3. The text on this page appears to be in Vietnamese and discusses topics related to orthopedic surgery. The content includes instructions and diagrams that seem to be related to surgical procedures or techniques. The page is divided into sections with headings and subheadings, indicating it is part of a larger document. The overall layout suggests it is a guide or manual for medical professionals or patients undergoing orthopedic procedures.