April D. Armstrong, MD

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April D. Armstrong, MD
Employed by Penn State Health
Orthopaedic Surgery, Shoulder and Elbow Surgery

Academic Appointments

C. McCollister Evarts Professor and Chair for the Department of Orthopaedics and Rehabilitation
Chief Shoulder and Elbow Surgery

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About Me

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 a Board of Director for the American Board of Orthopaedic Surgery (ABOS) and is slated to be President in 2023. She is Associate Editor for the Journal of Shoulder and Elbow Surgery. She specializes in treating complex shoulder and elbow conditions.

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 consultant for Zimmer Biomet and receives royalties related to a total shoulder implant. She is also a consultant for Aevumed, related to a rotator cuff repair implant, and has the potential to receive royalties in the future.


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Professional Education


Medical School, University of Western Ontario, Faculty of Medicine - 1996


Fellowship, Ortho Surgery, Shoulder & Elbow Washington Univ., Barnes-Jewish Hospital - 2003

Fellowship, Ortho Surgery, Hand & Upper Extremity University of Western Ontario, Faculty of Medicine - 2002


Residency, Orthopedic Surgery University of Western Ontario, Faculty of Medicine - 2001