Publications



Refereed Journals

2021


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2020


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2019


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2018


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Conference Abstracts

2021

  • Asay JL, Erhart-Hledik JC, Indelli PF, Andriacchi TP. Knee Center of Rotation Correlates to Pain Scores in Patients with Total Knee Arthroplasty. Proceedings of the Orthopaedic Research Society 2021. Virtual Meeting. February 2021.
  • Mahtani GB, Erhart-Hledik JC, Asay JL, Andriacchi TP, Chu CR. Gait Retraining Induced Changes in Center of Pressure Associated with Reductions in Knee Adduction Moment Following ACL Reconstruction. Proceedings of the Orthopaedic Research Society 2021. Virtual Meeting. February 2021.
  • Erhart-Hledik JC, Mahtani GB, Asay JL, Chu CR, Andriacchi TP. Baseline Knee Adduction Moment Is Related To 9-year Changes In Patient-reported Outcomes In Healthy Overweight Adults. Proceedings of the Orthopaedic Research Society 2021. Virtual Meeting. February 2021.
  • Erhart-Hledik JC, Asay JL, Andriacchi TP. Responses Of Serum Cartilage Oligomeric Matrix Protein To A Mechanical Stimulus Are Associated With Ambulatory Joint Loading In Knee Osteoarthritis Subjects. Proceedings of the Orthopaedic Research Society 2021. Virtual Meeting. February 2021.

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2020

  • Erhart-Hledik JC, Chu CR, Asay JL, Mahtani GB, Andriacchi TP. Side-to-side differences in vertical ground reaction force two years after anterior cruciate ligament reconstruction predict longitudinal changes in patient-reported outcomes. World Congress on Osteoarthritis (OARSI), April 2020, Vienna, Austria.
  • Erhart-Hledik JC, Mahtani GB, Asay JL, Burt H, Nguyen M, Do B, Andriacchi TP, Chu CR. Variable responses in pan and function 1 month after platelet-rich plasma injection are related to changes in joint loading during gait. World Congress on Osteoarthritis (OARSI), April 2020, Vienna, Austria.
  • Fischer AG, Erhart-Hledik JC, Asay JL, Chu CR, Andriacchi TP. Trunk movement patterns are associated with knee flexion moment changes while utilizing the somatosensory system during stair climbing: Clinical trial crossover study. World Congress on Osteoarthritis (OARSI), April 2020, Vienna, Austria.
  • Asay JL, Erhart-Hledik JC, Mahtani GB, Andriacchi TP. Medial Shift of Foot Center of Pressure Correlates to Knee Adduction Moment Reduction. Orthopaedic Research Society, February 2020, Phoenix, AZ.
  • Asay JL, Erhart-Hledik JC, Mahtani GB, Fischer AG, Leonardi EA, Indelli PF, Andriacchi TP. Activating the Somatosensory System Improves Gait Metrics Linked to Pain in Patients with Total Knee Replacements. Orthopaedic Research Society, February 2020, Phoenix, AZ.
  • Erhart-Hledik JC, Mahtani G, Asay JL, Burt H, Nguyen M, Do B, Andriacchi TP, Chu CR. Variable response to PRP treatment correlates to adaptions in knee loading during gait at a 1 month follow-up. Orthopaedic Research Society, February 2020, Phoenix, AZ.
  • Erhart-Hledik JC, Migliore E, Leonardi E, Mahtani G, Burt H, Nguyen M, Do B, Andriacchi TP, Chu CR. PRP platelet counts correlate with changes in pain and function following PRP treatment: Initial results at 3 month follow-up. Orthopaedic Research Society, February 2020, Phoenix, AZ.
  • Erhart-Hledik JC, Mahtani G, Migliore E, Asay JL, Andriacchi TP, Chu CR. Longitudinal changes in knee adduction moment with a variable-stiffness shoe correlate with changes in COMP responses to a mechanical stimulus. Orthopaedic Research Society, February 2020, Phoenix, AZ.
  • Erhart-Hledik JC, Titchenal M, Migliore E, Asay JL, Andriacchi TP, Chu CR. Serum Cartilage Oligomeric Matrix Protein Responses to a Mechanical Stimulus are Associated With Loading During Gait in Individuals With Anterior Cruciate Ligament Reconstruction. Orthopaedic Research Society, February 2020, Phoenix, AZ.
  • Fischer AG, Titchenal M, Williams A, Migliore E, Asay JL, Erhart-Hledik JC, Andriacchi TP, Chu CR. Elevated TNF-a, reduced knee loading and increased UTE-T2* signal 2 Years Post ACLR: A signal for knee OA in a subset of patients. Orthopaedic Research Society, February 2020, Phoenix, AZ.
  • Williams A, Erhart-Hledik JC, Mahtani G, Asay JL, Andriacchi TP, Chu CR. Correlations between longitudinal changes in knee kinetics and cartilage composition in patients with knee osteoarthritis suggest the benefits of load reduction using variable-stiffness shoes Orthopaedic Research Society, February 2020, Phoenix, AZ.

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2019

  • Erhart-Hledik JC, Williams A, Mahtani G, Asay J, Andriacchi TP, Chu CR. Correlations between longitudinal changes in knee kinetics and MRI in patients with knee osteoarthritis suggest the benefits of load reduction using variable-stiffness shoes. Military Health System Research Symposium (MHSRS), August 2019, Kissimmee, FL.
  • Fischer AG, Erhart-Hledik JC, Asay JL, Chu CR, Andriacchi TP. Activating the somatosensory system enhances knee flexion and quadriceps activity during gait and stair climbing. World Congress on Osteoarthritis (OARSI), May 2019, Toronto, Canada.
  • Erhart-Hledik JC, Mahtani G, Asay JL, Andriacchi TP, Chu CR. Changes in knee adduction moment with a variable-stiffness shoe are related to changes in pain and function. World Congress on Osteoarthritis (OARSI), May 2019, Toronto, Canada.
  • Fischer AG, Erhart-Hledik JC, Asay JL, Chu CR, Andriacchi TP. Activating the Somatosensory System Enhances the Quadriceps Moment and PROs During Gait: Clinical Trial Crossover Study Results. Orthopaedic Research Society, February 2019, Austin, TX.
  • Asay JL, Crowder HA, Gold GE, Giori NJ, Andriacchi TP. Preoperative Imaging Correlations to Gait and PROs Post Meniscectomy. Proceedings of the Orthopaedic Research Society 2019. Austin, TX, USA. February 2019.
  • AG Fischer, JC Erhart-Hledik, JL Asay, CR Chu, TP Andriacchi, Activating the somatosensory system enhances knee flexion and quadriceps activity during gait and stair climbing, Osteoarthritis and Cartilage 27, S63-S64, 2019.

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2018

  • Erhart-Hledik JC, Chu CR, Asay JL, Andriacchi TP. Long-term Changes in Gait Mechanics Correlate with Cartilage Loss in Patients at High Risk for Post-Traumatic Osteoarthritis. Military Health System Research Symposium (MHSRS), August 2018, Kissimmee, FL.
  • Titchenal MR, Williams AA, Asay JL, Migliore E, Erhart-Hledik JC, Andriacchi TP, Chu CR. A New Serum Biomarker Stress Test Correlates with Novel MRI UTE-T2* and Gait Mechanics in Patients at High Risk for Post-Traumatic Osteoarthritis. Military Health System Research Symposium (MHSRS), August 2018, Kissimmee, FL. Young Investigator Competition Finalist.
  • Erhart-Hledik J, Mahtani G, Asay J, Chu C, Andriacchi T. Active Feedback Gait Retraining Alters Foot Pressure Patterns and Reduces Knee Adduction Moment in an Anterior Cruciate Ligament Reconstructed Population. The 2018 World Congress on Osteoarthritis (OARSI), Liverpool, UK, Apr 26-29, 2018.
  • Erhart-Hledik JC, Mahtani G, Asay JL, Chu CR, Andriacchi TP. Active feedback gait retraining alters foot pressure patterns and reduces knee adduction moment in an anterior cruciate ligament reconstructed population. World Congress on Osteoarthritis (OARSI), April 2018, Liverpool, UK.
  • Titchenal MR, Williams AA, Asay JL, Migliore E, Erhart-Hledik JC, Andriacchi TP, Chu CR. Mechanically Stimulated CS846 Correlates with Ultrashort Echo Time Enhanced T2* Quantitative MRI and Gait Mechanics 2 Years after Anterior Cruciate Ligament Reconstruction. World Congress on Osteoarthritis (OARSI), April 2018, Liverpool, UK.
  • Asay J, Giori N, Andriacchi T. Gait Correlations to Pain 24-Months Post Medial Meniscectomy. The 64th Annual Meeting of the Orthopaedic Research Society, New Orleans, LA, Mar 10-13, 2018.
  • Titchenal M, Williams A, Migliore E, Erhart-Hledik J, Andriacchi T, Chu C. Mechanically Induced Changes in Serum Cartilage Oligomeric Matrix Protein (COMP) after Anterior Cruciate Ligament Reconstruction Correlate with Changes to Medial Knee MRI UTE-T2*. The 64th Annual Meeting of the Orthopaedic Research Society, New Orleans, LA, Mar 10-13, 2018.
  • Fischer A, Erhart-Hledik J, Chu C, Asay J, Andriacchi T. Changes in Movement Patterns during Stair Climbing from Two to Eight Years after ACL Reconstruction are Associated with Patient-Reported Outcomes. The 64th Annual Meeting of the Orthopaedic Research Society, New Orleans, LA, Mar 10-13, 2018. NIRA winner.
  • Erhart-Hledik J, Chu C, Asay J, Favre J, Andriacchi T. Longitudinal Changes in the Total Knee Joint Moment after ACLR Correlate with Cartilage Thickness Changes. The 64th Annual Meeting of the Orthopaedic Research Society, New Orleans, LA, Mar 10-13, 2018.

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Books and Book Chapters


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Andriacchi Invited Lectures

  • Invited Speaker: Back to Basics. “Gait and Joint Mechanics, The Next Steps Towards Understanding Musculoskeletal Pathology,” ORS Annual Meeting February 2021.
  • Invited Research Interest Panel Member: Osteoarthritis. 2018 ORS Annual Meeting, New Orleans, LA, March 9-13, 2018.
  • Invited Speaker: 2017 OARSI World Congress on “Osteoarthritis through Prevention,” Las Vegas, NV, April 27-30, 2017.
  • Invited Speaker: 2016 DKOU Meeting, Title: “Joint Physiology and Mechanics: Implications for Osteoarthritis”, Berlin, Germany, October 25-28, 2016.
  • Invited Speaker: ACL Study Group, Title: “ACL Traveling Scholar Report: Why does ACL Injury Lead to Knee OA?”, Áre, Sweden, March 13, 2016.
  • Keynote Speaker at “OA Day in Lausanne”, National Symposium on Knee Osteoarthritis, Title: “A Systems Approach to Knee OA”, Lausanne, Switzerland, June 18, 2015.
  • Invited Speaker: Stanford University School of Medicine, Department of Orthopaedic Surgery Founders Day Lectures, Title: “Why does ACL injury lead to premature knee osteoarthritis?”, Stanford University, Stanford, CA, June 25, 2015.
  • ACL Traveling Fellow lectures – Harvard University and Boston Children’s Hospital, Boston, MA (Title: “ACL Injury and the Pathway to Knee Osteoarthritis” on May 20th, 2015); Brown University, Providence, RI (Title: “Osteoarthritis at the Interface of Mechanics, Biology and Structure” on May 20th, 2015; Duke University, Durham, NC (Title: “A Pathway from ACL Injury to Osteoarthritis” on May 22nd, 2015).
  • Invited Speaker/Visiting Professor Program for the Department of Orthopaedics: The Ohio State University, Columbus, Ohio, May 7-8, 2015.
  • Invited Speaker: “50 Years: Orthopaedics - Today and Future.” International Musculoskeletal Research Conference and Orthopaedic Jubilee Conference Day, Title: Pathomechanics of Osteoarthritis", Basel, Switzerland, September 24-25, 2014.
  • Keynote Lecturer: Herman Woltring Memorial Lecture, 3D Analysis of Human Movement 2014, Title: “The Future of Movement Analysis: How Do We Go from Bench to Bedside?” Lausanne, Switzerland, July 14-17, 2014.
  • Invited Speaker: Stanford University School of Medicine, Department of Orthopaedic Surgery Founders Day Lectures, Title: “A Systems View of Knee Osteoarthritis,” Stanford University, Stanford, CA, June 26, 2014.
  • Invited Scientific Session Speaker: Annual European Congress of Rheumatology EULAR 2014, Title: “Biomechanical Joint Homeostasis: Mechanisms in Health,” Aging and OA, Paris, France, June 11-14, 2014.
  • Invited Speaker: Stanford Students in Bioengineering, Title: “Understanding Knee Pathology: from ACL Injury to Total Knee Replacement”, Stanford University, Stanford, CA, April 26, 2014.
  • Invited Speaker: ACL Study Group Traveling Fellowship Program, Traveling Scientist Research Paper Presentation Title: Patterns of Locomotion Give Us Unique Insights into ACL Function and Reconstruction, Cape Town, South Africa, January 26-30, 2014.
  • Distinguished Lecturer: Cardiff University, Wales, UK, Title: "Why Haven't We Found a Treatment for Osteoarthritis?, November 9, 2013.
  • Keynote Lecture: Institute of Mechanical Engineering (IMechE) Knee Conference, Title: “TKR and the ACL: To Cut or not to Cut!”, London, November 11-12, 2013.
  • International Society for Technology in Arthroplasty (ISTA) Lifetime Achievement Award recipient Lecturer and Moderator, Palm Beach, Florida, October 16-19, 2013.
  • Invited Speaker: The American Orthopaedic Society for Sports Medicine (AOSSM), Title: “Measuring Graft Strain and Joint Loading after ACL Reconstruction”, Chicago, IL July 11-14, 2013.
  • Keynote Lecture: Osteoarthritis Research Society International (OARSI) 2013 World Congress on Osteoarthritis, Title: “The Role of Biomechanics in OA” Philadelphia, PA, April 18-21, 2013.
  • Distinguished Israel Pollak Lecture Series, Technion Israel Institute of Technology, Titles: “What has Gait Mechanics Taught Us about Knee Osteoarthritis?” and “A Systems Approach to Probing the Complexity of Osteoarthritis”, Haifa, November 10-17, 2012.
  • Invited Speaker: The Arthritis Foundation Segal North American Osteoarthritis Workshop (SNOW V), Title: “Dynamic Functional Assessment of the Joint” Chicago, IL, October 25-28, 2012.
  • Invited Board Member: OA Team International Advisory Board (IAB) Meeting, Lake Louise, Alberta, Canada, September 12-13, 2012.
  • Invited Speaker: Gordon Research Conference on Musculoskeletal Biology and Bioengineering, Title: “Kinematic ACL Injury and OA”, Proctor Academy in Andover, New Hampshire, August 5-10, 2012.
  • Invited Speaker: ACL Study Group Traveling Scientist Program, Title: “A Paradigm for the Initiation of a Pathway to Osteoarthritis following ACL Injury”, Jackson Hole, Wyoming, February 12-17, 2012.
  • Chair of the ASME Honors Committee and Award Presenter, ASME Summer Bioengineering Conference, Fajardo, Puerto Rico, June 20-23, 2012.
  • Keynote Speaker: Osteoarthritis Research Society International (OARSI), Title: Biomechanics (Clinical Perspectives), San Diego, CA, September 15-18, 2011.
  • Session Speaker: Stanford University School of Engineering “EDAY '11”, Session Topic: “Walk This Way”, Stanford, CA, July 16, 2011.
  • Invited Speaker: Science Based Prevention Symposium for Sports Sciences and Sports Medicine Berlin, Title: “Movement Science without Markers”, Charite University, Berlin, Germany, June 30-July 1, 2011.
  • Invited Speaker: Stanford University School of Medicine, Department of Orthopedic Surgery Founders Day Lectures, Title: “ACL Injury Biomechanics and Prevention” Stanford University, Stanford, CA, June 23rd, 2011.
  • Invited Speaker: AOSSM Post-Joint Injury Osteoarthritis II, Title: “Motion Pattern Changes Following Joint Injury: Implications for Development of Osteoarthritis”, New Orleans, LA, December 2-5, 2010.
  • Invited Speaker: American College of Rheumatology ACR/ARHP Annual Scientific Meeting State of the Art Lectures, Title: “Walk this Way: Biomechanics and Osteoarthritis”, Atlanta, GA, November 6-11, 2010.

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Last updated: April 2, 2021