…nerve and the superior gluteal artery are avoided. The patient lies on their side with the knee slightly flexed. Place the palm on the greater…

…50 mL syringe for a knee with a large effusion, 5–10 mL for smaller joints. Local anaesthesia of the skin and subcutis where needed…

…generously — it is the periosteum that hurts, not the skin. Aspiration needle (iliac crest or sternal needle with stylet) and a Jamshidi type biopsy needle…

…Position the patient correctly. The lateral position with the back towards you, the knees drawn up, the chin on the chest, and the shoulders and…