AprilDArmstrongMD,BSc (PT), MSc, FRCSC

PubMed

• Mechanically compliant locking plates for diaphyseal fracture fixation: A biomechanical study.
  Connor Huxman, Gregory Lewis, April Armstrong, Gary Updegrove, Zachary Koroneos
  Journal of Orthopaedic Research. 2025-01-01
• Racial and gender disparities in utilization of outpatient total shoulder arthroplasties.
  , Catherine J Fedorka, Xiaoran Zhang, Harry H Liu, Michael B Gottschalk
  Journal of Shoulder and Elbow Surgery. 2024-12-01
• Revision shoulder arthroplasty: predictors of subsequent revision surgery and economic burden amongst Medicare beneficiaries.
  , Adam Z Khan, Harry H Liu, John G Costouros, Matthew J Best
  Journal of Shoulder and Elbow Surgery. 2024-09-11

Journal Articles

• Construct damage and loosening around glenoid implants: A longitudinal micro dash CT study of five cadaver specimens  
  Lewis GS, Brenza JB, Paul EM, Journal of Orthopaedic Research, 1/2/2015
• Evaluation of Patients’ Response Towards Osteoporosis Letter Intervention Versus Phone Call Plus Letter Intervention  
  O Brien LK, Hassenbein SE, Fox EJ, Geriatrics Orthopaedic Surgical Rehabilitation, 1/1/2015
• Controversies in Shoulder Arthroplasty  
  Throckmorton TW, Tashjian RZ, Keener JD, Dines DM, Athwal GS, Iannotti JP, St Pierre P, Flanagin BA, Garofalo R, Krishnan S, Sajadi KR, Gulotta LV, Abboud JA, Sperling JW, Techniques Shoulder and Elbow Surgery, 1/1/2015
• Testing of a novel pin array guide for accurate three dimensional glenoid component positioning  
  Lewis GS, Stevens NM, JSES, 1/1/2015
• Quality and Safety in Orthopaedics: Learning and Teaching at the Same Time: AOA Critical Issues  
  Black KP, Egol KA, Journal of Bone & Joint Surgery, 1/1/2015
• Peri implant stress correlates with bone and cement morphology: micro FE modeling of implanted cadaveric glenoids  
  Wee HB, Flint WW, Lewis GS, J Ortho Research., 1/1/2015
• Scapular Malunion in Vietnam War Veteran: Superior Medial Angle of Scapula Impinging on Clavicle  
  Sorenson SM, Armstrong AD, JBJS Case Connector, 1/1/2015
• Glenoid Cement Mantle Characterization Using Micro CT of Three Cement Application Techniques  
  Flint WW, Lewis, GS, Wee HB, Bryce BJ, JSES, 1/1/2015
• Simple Elbow Dislocation  
  Armstrong AD, Hand Clinics, 1/1/2015
• Functional Outcomes Following Shoulder Resection: The Patient’s Perspective  
  Stevens N, Kim HM, JSES, 1/1/2015
• Evaluation and Management of Adult Shoulder Pain: A Focus on Rotator Cuff Disorders, Acromioclavicular Joint Arthritis, and Glenohumeral Arthritis, Common Musculoskel...  
  Armstrong AD, Medical Clinics of North America, 1/1/2014
• Multipotent mesenchymal stem cells from human subacromial bursa: potential for cell based tendon tissue engineering  
  Song N, Li F, Niyibizi C, Tissue Eng Part A, 1/1/2014
• Os Acromiale Rupture Associated with Massive Rotator Cuff Tear Causing Deltoid Insufficiency and Superior Humeral Escape, a Case Report  
  Pinkowski G, Armstrong AD, JBJS Case Connector, 1/1/2014
• Biomechanical studies: science (f)or common sense?  
  Van der Zwan AL, Spoor AB, van Vugt AB, Injury, 1/1/2014
• How surgeons decide when the evidence is inconclusive  
  A Lee Osterman, A.B. Spoor, J Hand Surg Am, 1/1/2013
• Design Evolution of the Glenoid Component in Total Shoulder Arthroplasty: Rationale and Impact on Operative Technique  
  Armstrong AD, Lewis G, JBJS Reviews, 1/1/2013
• I feel disconnected: Learning Technologies in Resident Education  
  Armstrong AD, Jarvis Selinger S, Instructional Course Lecture, 1/1/2013
• Improved Magnetic Resonance Imaging Visualization of the Medial Collateral Ligament with Elbow Flexion  
  Keener B, Mosher T, Techniques in Shoulder and Elbow Surgery, 1/1/2012
• Mechanical characteristics of a novel posterior dash step prosthesis for biconcave glenoid defects  
  Kirane YM, Lewis GS, Sharkey NA, JSES, 1/1/2012
• Comparison of standard two dimensional and three dimensional corrected glenoid version measurements  
  Budge M, Lewis G, Hollenbeak CS, Coquia S, Flemming D, J Shoulder Elbow Surg, 1/1/2011
• Management of anterior shoulder instability: ask the experts  
  Abboud JA, Armstrong AD, JSES, 1/1/2011
• The recurrent unstable elbow: diagnosis and treatment  
  Murthi AM, Keener JD, Getz CL, JBJS Am, 1/1/2010
• A biomechanical study of posterior glenoid bone loss and humeral head translation  
  Bryce CD, Davison AC, Okita N, Lewis GS, Sharkey NA, Journal of Shoulder & Elbow Surgery, 1/1/2010
• Location of the optimized centerline of the glenoid vault; a comparison of two operative techniques using 3D computer modeling  
  Lewis G, Bryce C, Davison A, Hollenbeak C, Piazza S, JBJS (Am), 1/1/2010
• Medicine versus orthopaedic service for hospital management of hip fractures  
  Chuang CH, Pinkowski GJ, Hollenbeak CS, Clinic Orthop Relat Res, 1/1/2010
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Books/Book Chapters

• World Clinics in Orthopaedics: Shoulder and Elbow Surgery 
  Chapter: Non arthroplasty Treatment of Elbow Arthritis 
  Page 296 - 308Updegrove G, Armstrong ADEditors: Matthew S. Autstin, Gregg R. Klein.2014
• Orthopaedic Knowledge Update (OKU) 
  Chapter: Elbow Instability and Reconstruction 
  Armstrong AD, Murthi AEditors: William Levine.2014
• AAOS Comprehensive Orthopaedic Review 2 
  Chapter: Arthritides of the Elbow 
  Armstrong AD2014
• AAOS Comprehensive Orthopaedic Review 2 
  Chapter: Dislocations of the Elbow 
  Armstrong AD2014
• Orthopaedic Knowledge Update, Shoulder and Elbow 4 
  Chapter: Medial and Lateral Recurrent Elbow instability 
  Page 505 - 514Armstrong ADEditors: Mark S. Cohen,.2013
• CORD Textbook for Orthopaedic Educators 
  Chapter: The Resident Learning Environment 
  Armstrong AD2013
• Orthopaedic Knowledge Online 
  Chapter: OKO – Internal Impingement of the Shoulder 
  Gallo R, Hubbard M2010
• Orthopaedic Knowledge Update (OKU) 10 
  Chapter: Elbow and Forearm Trauma 
  Page 325 - 342Armstrong AD, Glaser DEditors: John M. Flynn.2010
• AAOS Comprehensive Orthopaedic Review 
  Chapter: Dislocations of the Elbow 
  Page 865 - 869Armstrong AD2009
• AAOS Comprehensive Orthopaedic Review 
  Chapter: Arthritides of the Elbow, Shoulder and Elbow Section 
  Page 871 - 876Armstrong AD2009
• Drees, DeLee and Miller Sports Medicine 
  Chapter: The Female Athlete 
  Page 475 - 491Griffin LY, DeMaio MEdition 3rd,2009
• Current Concepts in Elbow Surgery, Operatives Techniques in Orthopaedics 
  Chapter: Elbow Arthroscopy – Setup, Portals and Tools Necessary for Success 
  Page 209 - 219Budge M, Armstrong AD2009
• Orthopaedic Knowledge Update, Shoulder and Elbow 
  Chapter: Acute, Recurrent and Chronic Elbow Instabilities 
  Armstrong ADEditors: Leesa M. Galatz.2008
• Orthopaedic Knowledge Update 3: Shoulder and Elbow 
  Chapter: Acute, Recurrent and Chronic Elbow Instabilities 
  Page 461 - 476Armstrong ADEditors: Galatz L.2008
• Minimally Invasive Shoulder and Elbow Surgery 
  Chapter: Elbow Arthroscopy: set up, anatomy and portal placement 
  Armstrong AD, Strigens TJEditors: Levine, B.2006
• Shoulder and Elbow Arthroplasty 
  Chapter: Complications of total elbow arthroplasty 
  Armstrong AD, Galatz, LMEditors: Williams, GR, Yamaguchi, K, Ramsey, ML, Galatz, LM.
• Shoulder and Elbow Arthroplasty 
  Chapter: Design of total elbow arthroplasty 
  Armstrong AD, Yamaguchi, KEditors: Williams, GR, Yamaguchi, K, Ramsey, ML, Galatz, LM.
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Abstracts/Posters

• Teaching Orthopaedic Residents Effective Communication Skills Using a Videotaped Analysis Approach
  Armstrong AD, Jarvis Selinger S, EdVenture Celebration, Penn State College of Medicine, University Conference Center, Hershey, PA, 1/24/2014
• The critical Threshold of Posterior Glenoid Bone Loss
  Bryce CD, Davison AC, Okita N, Sharkey NA, 18th Annual James Buchanan Memorial Lecture; 21st Annual James Buchanan Memorial Lecture; Combined COA, AOA Meeting, Hershey, PA, 2007; Quebec City, Quebec, Canada, 2008, 1/1/2010
• Using a virtual standardized family and video presentations to enhance medical education
  Leong SL, Kees Folts D, Magnifico B, Goldstein J, Banks S, Fox E, Wren A, Schwentker E, Black K, EdVenture Celebration, Penn State College of Medicine, University Conference Center, Hershey, PA, 1/28/2009
• Alterations in the strain distribution and Joint translations before and after total shoulder arthroplasty
  Kirane Y, Sharkey N, 55th Annual Meeting Orthopaedic Research Society, Las Vegas, NE, 1/1/2009
• Creation of an innovative musculoskeletal examination teaching tool used to improve medical student learning and overcome difficulties encountered in musculoskeletal e...
  Banks, SE, Black KP, Schwentker E, Fox E, Wren A, Boehmer MA, Leong SL, NEGA Conference, Hershey Lodge, Hershey, PA, 1/1/2009
• Medical versus orthopaedic service for hospital management of hip fracture patients
  Pinkowski G, Chuang C, SGIM 31st Annual Meeting, Pittsburgh, PA, 1/1/2008
• The effect of metacarpal stem configuration on load transfer to the third metacarpal: an in vitro biomechanical study
  Campbell LJ, Ferreira LM, King GJW, Johnson JA, Canadian Orthopaedic Association 57th Annual Meeting, Victoria, British Columbia, 1/1/2002
• The effect of metacarpal stem configuration on load transfer to the long finger metacarpal: an in vitro biomechanical study
  Campbell LJ, King GJW, Johnson JA, American Society for Surgery of the Hand 57th Annual Meeting, Phoenix, AZ, 1/1/2002
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Lectures

• Testing of a Novel Guiding Device for Glenoid Component Placement in Total Shoulder Arthroplasty 
  1/28/2015
• Whats new with Total Shoulder Arthroplasty 
  Hershey, PA - 1/17/2015
• Mini Orthopaedic Educators Course 
  Michigan State University College of Human Medicine, Grand Rapids, MI; Mount Nittany Medical Center, - 1/1/2015
• Teaching in the clinic: it can be effective and efficient, even for the surgeon 
  1/17/2014
• Micro FE Analysis of Trabecular bone and Cement in a Series of Implanted Cadaveric Glenoids 
  New Orleans, LA - 1/14/2014
• Posterolateral Rotatory Instability 
  Pennsylvania State Milton S. Hershey Medical Center Hershey, PA; 2006, 2009, 2010 - 1/1/2014
• Teamwork 
  Pennsylvania State Milton S. Hershey Medical Center Hershey, PA - 1/28/2013
• ICL: Technique for Anterior Shoulder 
  Beijing, China - 1/21/2013
• Proximal Humerus Fractures and Fracture Management 
  Beijing, China - 1/20/2013
• What is new with the glenoid 
  Beijing, China - 1/20/2013
• The Stiff, Unstable Elbow 
  Philadelphia, PA - 1/20/2013
• Delegating Chair Responsibilities: The Key to Success and Happiness 
  Denver, CO - 1/14/2013
• Approach to Proximal Humeral Fractures 
  Sydney, Cape Breton, NS - 1/14/2013
• What’s New With The Glenoid 
  Sydney, Cape Breton, NS - 1/14/2013
• Prevention of Problems 
  Denver, CO - 1/14/2013
• My Approach to the Total Shoulder Replacement 
  Sydney, Cape Breton, NS - 1/13/2013
• Scapula Fractures 
  Pennsylvania State Milton S. Hershey Medical Center Hershey, PA - 1/3/2013
• Elbow Arthritis 
  Pennsylvania State Milton S. Hershey Medical Center Hershey, PA; 2006, 2008, 2010 - 1/1/2013
• Elbow Contractures 
  Pennsylvania State Milton S. Hershey Medical Center Hershey, PA; 2006, 2008, 2011 - 1/1/2013
• Complex Elbow Dislocation 
  Pennsylvania State Milton S. Hershey Medical Center Hershey, PA; 2011 - 1/1/2013
• Instructional Course Lecture: Fracture and Dislocations of the Elbow: A Return to Basics 
  San Francisco, CA, 2012; Chicago, IL, 2013 - 1/1/2013
• Surgical Skills Course: Shoulder Instability 
  San Francisco, CA, 2012; Chicago, IL, 2013 - 1/1/2013
• Instructional Course Lecture: AC and SC Injuries, Glenoid and Scapula Fractures 
  San Diego, CA, 2011; San Francisco, CA, 2012; Chicago, IL, 2013 - 1/1/2013
• AAOS/ASES Shoulder Arthroplasty: State of the Art 
  The American Academy of Orthopaedic Surgeons, Rosemont, Illinois - 11/15/2012
• 45th Annual AAOS Course for Orthopaedic Educators 
  The American Academy of Orthopaedic Surgeons, Bloomingdale, Illinois - 11/4/2012
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Other

• Break the Pain 
  Armstrong AD, WGAL Channel 8 News program
  1/29/2010