April Armstrong

C. McCollister Evarts Professor and Chair for Orthopaedics and Rehabilitation

April Armstrong

Huck Affiliations

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Most Recent Publications

A preoperative risk assessment tool for predicting adverse outcomes among total shoulder arthroplasty patients

Adam Z. Khan, Evan A. O'Donnell, Catherine J. Fedorka, Jacob M. Kirsch, Jason E. Simon, Xiaoran Zhang, Harry H. Liu, Joseph A. Abboud, Eric R. Wagner, Matthew J. Best, April D. Armstrong, Jon J.P. Warner, Mohamad Y. Fares, John G. Costouros, Jarret Woodmass, Ana Paula Beck da Silva Etges, Porter Jones, Derek A. Haas, Michael B. Gottschalk, Uma Srikumaran, 2025, Journal of Shoulder and Elbow Surgery on p. 837-846

Defining the Cost of Arthroscopic Rotator Cuff Repair: A Multicenter, Time-Driven Activity-Based Costing and Cost Optimization Investigation

Catherine J. Fedorka, Ana Paula Beck Da Silva Etges, Matthew J. Best, Harry H. Liu, Xiaoran Zhang, Brett Sanders, Joseph A. Abboud, Mohamad Y. Fares, Jacob M. Kirsch, Jason E. Simon, Jarret Woodmass, Porter Jones, Derek A. Haas, April D. Armstrong, Uma Srikumaran, Eric R. Wagner, Michael B. Gottschalk, Adam Z. Khan, John G. Costouros, Jon J.P. Warner, Evan A. O'donnell, Adam Z. Khan, Jon J.P. Warner, Evan A. O'Donnell, 2025, Journal of Bone and Joint Surgery on p. 9-15

Low success rate of closed reductions when treating dislocations after reverse shoulder arthroplasty: a study by the ASES Complications of RSA Multicenter Research Group

Richard Puzzitiello, Evan A. Glass, Adam R. Bowler, Daniel P. Swanson, Michael Moverman, Ryan Lohre, Kuhan A. Mahendraraj, Miranda McDonald-Stahl, Declan R. Diestel, Kiet Le, Warren R. Dunn, Dylan J. Cannon, Lisa G.M. Friedman, Jaina A. Gaudette, John Green, Lauren Grobaty, Michael Gutman, Jacquelyn 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, Jason E. Hsu, Joseph Iannotti, Michael Khazzam, Joseph J. King, Jacob M. Kirsch, 2025, Journal of Shoulder and Elbow Surgery

Patient and surgical risk factors for dislocation after reverse shoulder arthroplasty: a study by the American Shoulder and Elbow Surgeons multicenter complications of reverse shoulder arthroplasty research group

Evan A. Glass, Adam R. Bowler, Michael J. Maxwell, Declan R. Diestel, Miranda McDonald-Stahl, Calista S. Stevens, Christopher Canizares, Pamela A. Chan, Daniel P. Swanson, Ryan Lohre, Michael A. Moverman, Richard Puzzitiello, Himmat Sahi, Kuhan A. Mahendraraj, Kiet Le, Warren R. Dunn, Dylan J. Cannon, Lisa GM Friedman, Jaina A. Gaudette, John Green, Lauren Grobaty, Michael Gutman, Jacquelyn 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, 2025, Seminars in Arthroplasty JSES

Racial and gender disparities in utilization of outpatient total shoulder arthroplasties

Catherine J. Fedorka, Xiaoran Zhang, Harry H. Liu, Michael B. Gottschalk, Joseph A. Abboud, Jon J.P. Warner, Peter MacDonald, Adam Z. Khan, John G. Costouros, Matthew J. Best, Mohamad Y. Fares, Jacob M. Kirsch, Jason E. Simon, Brett Sanders, Evan A. O'Donnell, April D. Armstrong, Ana Paula Beck da Silva Etges, Porter Jones, Derek A. Haas, Jarret Woodmass, 2024, Journal of Shoulder and Elbow Surgery on p. 2637-2645

Professional Behavior Assessment During Residency Training Can We Identify Outliers?

Ann Van Heest, Steven Frick, John Harrast, David Martin, Mona Saniei, Lisa Taitsman, April Armstrong, 2024, JBJS Open Access

Mechanically compliant locking plates for diaphyseal fracture fixation: A biomechanical study

Connor Huxman, Gregory Lewis, April Armstrong, Gary Updegrove, Zachary Koroneos, Jared Butler, 2024, Journal of Orthopaedic Research on p. 217-227

Utility of Machine Learning, Natural Language Processing, and Artificial Intelligence in Predicting Hospital Readmissions after Orthopaedic Surgery: A Systematic Review and Meta-Analysis

Mohamad Y. Fares, Harry H. Liu, Ana Paula Beck Da Silva Etges, Benjamin Zhang, Jon J.P. Warner, Jeffrey J. Olson, Catherine J. Fedorka, Adam Z. Khan, Matthew J. Best, Jacob M. Kirsch, Jason E. Simon, Brett Sanders, John G. Costouros, Xiaoran Zhang, Porter Jones, Derek A. Haas, Joseph A. Abboud, April D. Armstrong, Robert M. Belniak, Michael B. Gottschalk, Eric C. Makhni, Augustus Mazzocca, Peter Macdonald, Evan A. O'Donnell, Uma Srikumaran, Evan Stieler, Gary F. Updegrove, Eric R. Wagner, Jarret Woodmass, 2024, JBJS Reviews

Implant-Positioning and Patient Factors Associated with Acromial and Scapular Spine Fractures After Reverse Shoulder Arthroplasty

Michael A. Moverman, Richard N. Puzzitiello, Evan A. Glass, Daniel P. Swanson, Kristian Efremov, Ryan Lohre, Adam R. Bowler, Kuhan A. Mahendraraj, Kiet Le, 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, Jason E. Hsu, Joseph Iannotti, Michael Khazzam, Joseph J. King, Jacob M. Kirsch, Jonathan C. Levy, 2024, Journal of Bone and Joint Surgery on p. 1384-1394

The most effective corticosteroid dose in the treatment of glenohumeral osteoarthritis: Feasibility pilot and protocol for double blinded randomized controlled trial

Cayce Onks, lynn weaver, Lynn Weaver, M Silvis, Johan Latorre, A Berg, Matthew Silvis, S Phillips, Arthur Berg, Cristy French, Shawn Phillips, A Armstrong, Jayson Loeffert, Cristy French, C Onks, April Armstrong, 2024, Osteoarthritis and Cartilage Open

Most-Cited Papers

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

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

Risk Factors for Increased Postoperative Pain and Recommended Orderset for Postoperative Analgesic Usage

April D. Armstrong, Susan E. Hassenbein, Sarah Black, Christopher S. Hollenbeak, 2020, Clinical Journal of Pain on p. 845-851

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

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

American Board of Orthopaedic Surgery's Initiatives Toward Competency-Based Education

Ann E. Van Heest, April D. Armstrong, Michael S. Bednar, James E. Carpenter, Kevin L. Garvin, John J. Harrast, David F. Martin, Peter M. Murray, Terrance D. Peabody, Charles L. Saltzman, Mona Saniei, Lisa A. Taitsman, J. Lawrence Marsh, 2022, JBJS Open Access