This document discusses intra-articular injections of hyaluronic acid and platelet-rich plasma (PRP-HA) for the treatment of orthopedic injuries and conditions. It provides details on the preparation and administration of PRP-HA injections, and summarizes results showing benefits for meniscal lesions, knee osteoarthritis, and hip labral tears/osteoarthritis. Positive outcomes included reduced pain and inflammation, improved joint function, decreased meniscal/labral lesions, and delayed progression of osteoarthritis. No significant side effects were reported.