The joint aspiration or injection is performed in the Interventional Radiology suite at the Department of Pediatric Radiology of Children’s Hospital. In the Interventional Radiology suite will be a pediatric interventional radiology doctor, who will perform your child’s procedure. Pediatric interventional radiologists are doctors who specialize in performing minimally invasive procedures using images or pictures—such as X-rays, CT scans and ultrasounds—to guide them. Pediatric radiology technologists and nurses will help the doctor.
Before the joint aspiration or joint injection begins, a nurse or technologist will use an antiseptic (germ-free) solution to clean the skin in the area where the joint will be treated. Your child will be given numbing medicine through a needle in the area around where the aspiration or injection will take place to help reduce pain. When the numbing medicine is injected, your child might experience a pinch and a brief burning feeling.
The pediatric interventional radiology doctor will use either fluoroscopy (X-rays), a CT scan or ultrasound to perform the procedure. The images will allow the doctor to see exactly where in the joint your child has fluid or pain. The doctor then will insert a needle into the joint to draw out the fluid. If your child is not receiving a joint injection, the needle will be taken out after the fluid is removed. If your child also is getting a joint injection, the needle will stay in place, so the doctor can inject medicine into the joint area. If this involves an MRI post injection, your child will be taken to the MRI area.
Once your child’s procedure is complete, a technologist will clean the skin area and then bandage it. You and your child then will be able to go home. The bandage may be removed the following day. Your child should not use the joint other than as necessary for 2 days (48 hours) after the procedure.
If your child needed sedation medication, he or she will have to stay in the Interventional Radiology suite or a recovery area for at least 30 minutes afterward to be monitored before being discharged.