What is an Arthrogram / Joint Injection?
An Arthrogram is a fluoroscopic examination of a joint under fluoroscopy. The joint contains soft tissue structures, including the cartilage and joint capsule. These are not visualized on regular X-rays. An injection of X-ray contrast and air are used to coat and outline these structures. During the exam, the Radiologist will clean the affected area with antiseptic soap. The injection site is numbed and a needle is placed into the joint. The contrast or air are sometimes injected and the needle is removed. A series of X-rays are then taken in a variety of positions. In some cases a CT or MRI scan is requested to follow the arthrogram. If so, this will be done following the injection. Please allow 1 1/2 hours for this exam. Patient Preparation for Arthrograms / Joint Injections If you have not already spoken to one of our nurses, please contact them at (206) 292-8525. They will clearly explain the procedure and answer any questions you might have. If you are allergic to iodine or contra
