Arthrography of Total Hip Replacement Using Subtraction Technique

Abstract

To determine whether separation or infection is occurring about a total hip replacement prosthesis, the authors use a subtraction technique employing a multiple film changer. After contrast agent is injected, comparison stress views may demonstrate a wider distribution of the agent than unstressed anteroposterior views. Recent experiments by the authors indicate that contrast agents commonly used in arthrography do not inhibit bacterial growth. Three fluid specimens are withdrawn at arthrography for culturing.