Arthrex Total Shoulder Arthroplasty (TSA) IOT Practice Exam – Prep & Study Guide

The statement is false because to successfully disengage the trunnion for the Univers II or Apex stems during the explantation process, it is necessary to remove the inferior screw. The superior screw does not require removal as part of this particular procedure. Understanding the mechanics of how these components interact is essential for effective explantation, as it ensures that the trunnion can be disengaged without inadvertently damaging the surrounding structures or the stem itself. This highlights the importance of knowing which screws are critical for the explantation process and which ones can remain in place.