No photo available.

April Dawn Armstrong, M.D.

Professor, Department of Orthopaedics and Rehabilitation

Office Information

Penn State Hershey Bone and Joint Institute
30 Hope Drive, Building B, Suite 2400
Hershey, PA 17033-0850
Tel: 800-243-1455 / 717-531-5638 Fax: 717-531-0983


Orthopaedic Surgery Shoulder & Elbow Surgery

Patient Services Provided

Shoulder/Elbow Arthritis Rotator cuff tear Shoulder/Elbow instability Total shoulder/elbow replacement Shoulder/elbow arthroscopy Shoulder/elbow trauma

Practice Locations

Biographical Information

April D. Armstrong, BSc(PT), MD, MSc, FRCSC

Dr. Armstrong is an Associate Professor of Orthopaedics and specializes in Shoulder and Elbow Surgery.  She is also Vice-Chair of Quality of the Department of Orthopaedics, as well as Associate Chief Medical Officer for Surgery with Penn State Milton S. Hershey Medical Group.

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 Masters 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.

Professional Education

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, Orthopaedic Surgery, University of Western Ontario, Faculty of Medicine (2001) M.D., University of Western Ontario, Faculty of Medicine (1996)


Armstrong AD, Dunning CE, Faber KJ, Duck TR, Johnson JA, King GJW:
Rehabilitation of the medial collateral ligament-deficient elbow: An In-vitro biomechanical study Nov 2000
J Hand Surg, Vol. 25A, No. 6, Nov, 2000
Armstrong AD, Dunning CE, Harwood C, Ferreria LM, Faber KJ, Johnson JA, King GJW
A biomechanical comparison of four reconstruction techniques for the medial collateral ligament deficient elbow Mar 2005
Journal of Shoulder and Elbow Surgery, 14(2): 207-15, Mar-Apr, 2005