This article is designed to give a general overview of joint injection and aspiration. Hands-on training and regular experience are essential. Injection techniques require knowledge of anatomy of the targeted area and a thorough understanding of the agents used. [ 1 ] Successful joint and soft tissue aspiration and injection also rely on the physician's understanding of the indications, contra-indications and general techniques involved in these procedures. [ 2 ] There are variations in technique and procedure and the techniques mentioned in this article are widely used but not necessarily definitive. Access to ultrasound to enable better targeting of steroid injections may improve efficacy. [ 3 ]
I had an MRI in May. The images showed excessive fluid buildup and inflammation in the bursa, and a small incomplete tear in my rotator cuff. The tear is in line with the fibers of my cuff, much like a split in a seam. It’s unclear whether I had the tear before the shot or whether the shot caused it. I’d had no prior symptoms, and Annunziata says the shot might either have caused the tear – if the needle went into the cuff – or stirred up a prolonged inflammatory response in the area, causing the tear to become painful.