…at least 2–3 cm of free fluid depth with no bowel in the path of the needle and measure the skin to peritoneum distance…

…4–6 weeks of adequate conservative treatment — modification of loading, eccentric exercise, an NSAID, an orthosis — has not given a sufficient effect. Contraindications Absolute: Cellulitis…

… cellulitis instead gives a diffuse oedematous picture without a demarcated fluid collection. Ultrasound also shows the depth of the cavity and its distance to vessels…