Intraoperative Assessment of Humeral Implant Stability

This research seeks to develop a process and tool for assessing the stability of an implant during shoulder replacement surgery. The proposed system will help shoulder surgeons decide whether an implant is sufficiently secure prior to completing the surgery. Researchers will measure how much torque it takes to loosen an Exactech shoulder implant from artificial bone models in a laboratory and relate this peak torque to the quality of the bone surrounding an implant.