Dr. Armstrong is the C. McCollister Evarts Professor and Chair, Department of Orthopaedics and Rehabilitation and is Chief of the Shoulder and Elbow Service and specializes in shoulder and elbow surgery. Dr. Armstrong serves as one of the Board of Directors for the American Board of Orthopaedics Surgery (ABOS) and is Associate Editor for the Journal of Shoulder and Elbow Surgery. Dr. Armstrong was born and raised in Barrie, Ontario, Canada. For undergraduate studies, she attended the University of Western Ontario for her BSc in Physical Therapy and then received her Medical Doctorate there as well. After her residency training at the University of Western Ontario, Dr. Armstrong completed a fellowship in Upper Extremity Orthopaedic Surgery at the Hand and Upper Limb Center, St. Joseph's Health Care in London, Ontario and completed her Master's degree in Medical Biophysics during the same year. She then completed a fellowship in Shoulder and Elbow Orthopaedic Surgery at the Barnes-Jewish Hospital, Washington University, St. Louis, Missouri. Dr. Armstrong's core research is on the glenoid with special focus on: morphology, glenoid component design, biomechanical loading, and three dimensional modeling. Dr. Armstrong is a member of the Zimmer Shoulder Design Team and has the potential to receive royalties in the future related to this design project. She is also a consultant for Globus, related to an elbow fracture fixation system, and Aevumed, related to design of a rotator cuff repair implant, and has the potential to receive royalties in the future.