April Armstrong

C. McCollister Evarts Professor and Chair for Orthopaedics and Rehabilitation

April Armstrong

Huck Affiliations

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Publication Tags

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Shoulder Arthroplasty Rotator Cuff Tissue Engineering Tendons Orthopedics Tissue Bone Biocompatible Materials Stem Cells Nacre Bioelectric Potentials Application Composite Materials Ceramic Arthritis Surgeons Implant Composite Material Elbow In Vitro Techniques Rotator Cuff Injuries Infections Fracture Fixation Muscles

Most Recent Publications

Trends in the Adoption of Outpatient Joint Arthroplasties and Patient Risk: A Retrospective Analysis of 2019 to 2021 Medicare Claims Data

April Armstrong, 2024, Journal of the American Academy of Orthopaedic Surgeons

Predictors of dislocations after reverse shoulder arthroplasty: a study by the ASES complications of RSA multicenter research group

Ryan Lohre, Daniel P. Swanson, Kuhan A. Mahendraraj, Randa Elmallah, Evan A. Glass, Warren R. Dunn, Dylan J. Cannon, Lisa G.M. Friedman, Jaina A. Gaudette, John Green, Lauren Grobaty, Michael Gutman, Jaquelyn Kakalecik, Michael A. Kloby, Elliot N. Konrade, Margaret C. Knack, Amy Loveland, Joshua I. Mathew, Luke Myhre, Jacob Nyfeler, Doug E. Parsell, Marissa Pazik, Teja S. Polisetty, Padmavathi Ponnuru, Karch M. Smith, Katherine A. Sprengel, Ocean Thakar, Lacie Turnbull, Alayna Vaughan, John C. Wheelwright, Joseph Abboud, April Armstrong, Luke Austin, Tyler Brolin, Vahid Entezari, Grant E. Garrigues, Brian Grawe, Lawrence V. Gulotta, Rhett Hobgood, John G. Horneff, Joseph Iannotti, Michael Khazzam, Joseph J. King, Jacob M. Kirsch, Jonathan C. Levy, Anand Murthi, Surena Namdari, Gregory P. Nicholson, Randall J. Otto, Eric T. Ricchetti, 2024, Journal of Shoulder and Elbow Surgery on p. 73-81

Risk factors of acromial and scapular spine stress fractures differ by indication: a study by the ASES Complications of Reverse Shoulder Arthroplasty Multicenter Research Group

Ryan Lohre, Daniel P. Swanson, Kuhan A. Mahendraraj, Randa Elmallah, Evan A. Glass, Warren R. Dunn, Dylan J. Cannon, Lisa GM Friedman, Jaina A. Gaudette, John Green, Lauren Grobaty, Michael Gutman, Jaquelyn Kakalecik, Michael A. Kloby, Elliot N. Konrade, Margaret C. Knack, Amy Loveland, Joshua I. Mathew, Luke Myhre, Jacob Nyfeler, Doug E. Parsell, Marissa Pazik, Teja S. Polisetty, Padmavathi Ponnuru, Karch M. Smith, Katherine A. Sprengel, Ocean Thakar, Lacie Turnbull, Alayna Vaughan, John C. Wheelwright, Joseph Abboud, April Armstrong, Luke Austin, Tyler Brolin, Vahid Entezari, Grant E. Garrigues, Brian Grawe, Lawrence V. Gulotta, Rhett Hobgood, John G. Horneff, Joseph Iannotti, Michael Khazzam, Joseph J. King, Jacob M. Kirsch, Jonathan C. Levy, Anand Murthi, Surena Namdari, Gregory P. Nicholson, Randall J. Otto, Eric T. Ricchetti, 2023, Journal of Shoulder and Elbow Surgery on p. 2483-2492

Higher Surgeon Volume is Associated with a Lower Rate of Subsequent Revision Procedures after Total Shoulder Arthroplasty: A National Analysis

Matthew J. Best, Catherine J. Fedorka, Derek A. Haas, Xiaoran Zhang, Adam Z. Khan, April D. Armstrong, Joseph A. Abboud, Andrew Jawa, Evan A. O'Donnell, Robert M. Belniak, Jason E. Simon, Eric R. Wagner, Momin Malik, Michael B. Gottschalk, Gary F. Updegrove, Jon J.P. Warner, Uma Srikumaran, 2023, Clinical Orthopaedics and Related Research on p. 1572-1580

The More Things Change, the More They Stay the Same: Residents Perspectives on Learning to Teach over 7 Years

Sandra Jarvis-Selinger, April Armstrong, Katherine Wisener, 2023, JBJS Open Access

A compliant fracture fixation plate for controlled axial motion in long bone healing

Connor Huxman, Gregory Lewis, Gary Updegrove, April Armstrong, Jared Butler, 2023,

Trends and outcomes of outpatient total shoulder arthroplasty after its removal from CMS's inpatient-only list

Evan A. O'Donnell, Matthew J. Best, Jason E. Simon, Harry Liu, Xiaoran Zhang, April D. Armstrong, Jon J.P. Warner, Adam Z. Khan, Catherine J. Fedorka, Michael B. Gottschalk, Jacob Kirsch, John G. Costouros, Mohamad Y. Fares, Ana Paula Beck da Silva Etges, Uma Srikumaran, Eric R. Wagner, Porter Jones, Derek A. Haas, Joseph A. Abboud, 2023, Journal of Shoulder and Elbow Surgery on p. 841-849

Impact of the COVID-19 pandemic on shoulder arthroplasty: surgical trends and postoperative care pathway analysis

Adam Z. Khan, Matthew J. Best, Catherine J. Fedorka, Robert M. Belniak, Derek A. Haas, Xiaoran Zhang, April Armstrong, Andrew Jawa, Evan A. O'Donnell, Jason E. Simon, Eric R. Wagner, Momin Malik, Michael B. Gottschalk, Gary F. Updegrove, Eric C. Makhni, Jon J.P. Warner, Uma Srikumaran, Joseph A. Abboud, 2022, Journal of Shoulder and Elbow Surgery on p. 2457-2464

Movement compensation is driven by the deltoid and teres minor muscles following severe rotator cuff tear

Joshua Pataky, Lyndsay Engle, Vijitha Seelam, Sujata Khandare, Zoe M. Moore, April D. Armstrong, Meghan E. Vidt, 2022, Clinical Biomechanics

Pectoralis major tendon transfer for management of subscapularis failure after anatomic total shoulder arthroplasty: technique and results

Gary Updegrove, Jacquelyn Kohler, Padmavathi Ponnuru, April D. Armstrong, 2022, JSES Reviews, Reports, and Techniques on p. 451-457

Most-Cited Papers

Multipotent mesenchymal stem cells from human subacromial bursa: Potential for cell based tendon tissue engineering

Na Song, April D. Armstrong, F Li, Hongsheng Ouyang, Christopher Niyibizi, 2014, Tissue Engineering - Part A. on p. 239-249

Design strategies and applications of nacre-based biomaterials

Ethan Michael Gerhard, Wei Wang, Caiyan Li, Jinshan Guo, Ibrahim Tarik Ozbolat, Kevin Michael Rahn, April Dawn Armstrong, Jingfen Xia, Guoying Qian, Jian Yang, 2017, Acta Biomaterialia on p. 21-34

Predictors of acromial and scapular stress fracture after reverse shoulder arthroplasty: a study by the ASES Complications of RSA Multicenter Research Group

Kuhan A. Mahendraraj, Joseph Abboud, April Armstrong, Luke Austin, Tyler Brolin, Vahid Entezari, Lisa Friedman, Grant E. Garrigues, Brian Grawe, Lawrence Gulotta, Michael Gutman, Paul Anthony Hart, Rhett Hobgood, John G. Horneff, Joseph Iannotti, Michael Khazzam, Joseph King, Michael A. Kloby, Margaret Knack, Jon Levy, Anand Murthi, Surena Namdari, Laurence Okeke, Randall Otto, Douglas E. Parsell, Teja Polisetty, Padmavathi Ponnuru, Eric Ricchetti, Robert Tashjian, Thomas Throckmorton, Clay Townsend, Melissa Wright, Thomas Wright, Zachary Zimmer, Mariano E. Menendez, Andrew Jawa, 2021, Journal of Shoulder and Elbow Surgery on p. 2296-2305

Additive manufacturing of fracture fixation implants: Design, material characterization, biomechanical modeling and experimentation

Maryam Tilton, Michael Hast, Gregory S. Lewis, Hwabok Wee, Hwa Bok Wee, April Armstrong, Michael W. Hast, Gregory Lewis, Guha Prasanna Manogharan, 2020, Additive Manufacturing on p. 101137

Preoperative and intraoperative infection workup in apparently aseptic revision shoulder arthroplasty

Gary F. Updegrove, April Armstrong, H Kim, 2015, Journal of Shoulder and Elbow Surgery on p. 491-500

Evaluation and management of adult shoulder pain: A focus on rotator cuff disorders, acromioclavicular joint arthritis, and glenohumeral arthritis

April Armstrong, 2014, Medical Clinics of North America on p. 755-775

Subscapularis function after total shoulder arthroplasty: electromyography, ultrasound, and clinical correlation

April D. Armstrong, Jodi D. Southam, Andrea H. Horne, Christopher S. Hollenbeak, Donald J. Flemming, Milind J. Kothari, 2016, Journal of Shoulder and Elbow Surgery on p. 1674-1680

Testing of a novel pin array guide for accurate three-dimensional glenoid component positioning

Gregory S. Lewis, Nicole M. Stevens, April D. Armstrong, 2015, Journal of Shoulder and Elbow Surgery on p. 1939-1947

In vitro cytocompatibility evaluation of poly(octamethylene citrate) monomers toward their use in orthopedic regenerative engineering

Chuying Ma, Ethan Gerhard, Qiaoling Lin, Silun Xia, April Dawn Armstrong, Jian Yang, 2018, Bioactive Materials on p. 19-27

Functional outcomes after shoulder resection: The patient's perspective

Nicole M. Stevens, H. Mike Kim, April D. Armstrong, 2015, Journal of Shoulder and Elbow Surgery on p. e247-e254