With contributions from over thirty specialists coordinated by Professor Antonio Frizziero, this manual explains in detail every aspect of intra and periarticular infiltrative therapy. The indications for the use of the main substances for injection are described: NSAIDs, muscle relaxants, hyaluronic acid, Prp, corticosteroids, stem cells, oxygen-ozone, botulinum toxin and local anaesthetics. Starting with the anatomical analysis of the joint, the authors illustrate the accesses and injection techniques in the different districts, with or without ultrasound guidance. In addition to the numerous operative images and anatomical tables, the volume is also enhanced by explanatory videos of the various joint access pathways.