If there is inadequate response from conservative treatment, an ultrasound-guided injection might be helpful. Injection therapy can be very useful to settle down the inflammation (and subsequently the pain), allowing you to undertake a rehabilitation program. One injection option is ultrasound guided steroid injection. Corticosteroids are potent anti-inflammatory medicines and usually provide rapid pain relief. They are usually followed by physiotherapy treatment to utilise the pain relief window achieved by the injection. Hyaluronic acid injections are an alternative to corticosteroids, and they are based on a naturally occurring substance within our bodies and joint. Hyaluronic acid injections have been shown effective in managing knee arthritis. More recently, platelet-rich plasma (PRP) injections have been used for the treatment of PFJ osteoarthritis. The PRP is obtained by taking a blood sample from the patient. Then, this will be spun in a centrifuge to separate the different components, including the plasma which is rich with growth factors. After that, the plasma is injected into the knee joint. PRP injections work by reducing inflammatory cells, thereby improving pain and function. In ultrasound guided patellofemoral joint injections, the ultrasound is used to visualise the needle, guiding it accurately to the targeted area. There is plenty of evidence showing that doing these injections under ultrasound guidance is more accurate, less painful and produce better results compared to non-guided injections.