Constance Chu

Constance Chu
Born
Constance R. Chu

Minneapolis, Minnesota, U.S.
EducationUnited States Military Academy (B.S.)
Harvard Medical School (M.D.)
Scientific career
FieldsOrthopedic surgery, Biomedical engineering
InstitutionsStanford University
University of Pittsburgh

Constance R. Chu is an American orthopedic surgeon and scientist working to improve public health by preserving joint health and mobility.[1] She is Professor and Vice Chair of Research in the Department of Orthopedic Surgery at Stanford University, practices orthopedic sports medicine at Stanford Health Care, and serves as Director of the Joint Preservation Center at the VA Palo Alto Health Care System, where imaging and regenerative medicine are integrated with clinical research and patient care.[2][3]

Early life and education

Chu was born in Minneapolis, Minnesota and was raised in Southern California. She graduated from the United States Military Academy at West Point in 1983, where she was among the first classes to graduate female cadets.[4]

Chu also holds a medical degree from Harvard Medical School.[5]

Military career

Chu was commissioned in the United States Army and served in military intelligence, specializing in cryptology and imaging intelligence. As a lieutenant, she led a 170-soldier signals intelligence platoon at Field Station Augsburg in Germany, later managing educational programs for this brigade-sized unit. She was promoted to captain and commanded an imaging intelligence unit at Fort Bragg, North Carolina. She resigned from active duty to pursue medical training.[2]

Medical career

Chu earned her medical degree from Harvard Medical School.[5] She completed her residency in orthopedic surgery at the University of California, San Diego and a fellowship in adult reconstructive surgery at Brigham and Women's Hospital of Harvard Medical School.[5]

She was subsequently recruited to the University of Pittsburgh, where she secured multiple peer-reviewed research grants from the National Institutes of Health and became the founding director of the Cartilage Restoration Center, a translational research program.[6] She was promoted to professor of orthopaedic surgery and bioengineering and held the Albert B. Ferguson Endowed Chair.[7]

Chu later joined Stanford University as Vice Chair of Research in the Department of Orthopedic Surgery.[5] She also directs the Joint Preservation Center, which integrates biologics, mechanics, and imaging in musculoskeletal care.[2] Her clinical practice focuses on knee injuries and the proactive treatment of joint pain to prevent osteoarthritis, particularly following ACL, cartilage, and meniscus injuries.[5]

Research

Chu's research addresses joint preservation and osteoarthritis (OA) prevention,[8] with emphasis on early diagnosis and treatment of joint injuries.[9] Her early work in tissue engineering demonstrated the feasibility of using cell-seeded biodegradable scaffolds to repair cartilage defects in vivo.[10]

Chu co-developed an optical coherence tomography (OCT) arthroscope and was the first to perform arthroscopic OCT imaging of human articular cartilage.[11][12]

She led studies demonstrating that local anesthetics such as bupivacaine and lidocaine are cytotoxic to articular cartilage in a dose- and time-dependent manner,[13][14] contributing to an FDA warning issued in 2009 regarding intra-articular pain pumps.

Chu helped develop quantitative MRI techniques, including ultra-short echo time (UTE) T2* mapping to detect cartilage and meniscus injury not visible on standard MRI.[15][16][17]

She has proposed a clinical framework for "pre-osteoarthritis", aiming to shift treatment from palliation to prevention.[18][19] Her work supports early, individualized, and multidisciplinary interventions to restore and rejuvenate joints.[5]

Chu's lab has also advanced gene therapy approaches for joint diseases, showing that intra-articular delivery of adeno-associated virus (AAV) vectors enables safe and sustained therapeutic gene expression.[20][21]

In studies of platelet-rich plasma (PRP), she reported that age and donor health status affect PRP's biological activity, with older or less healthy donors' PRP potentially promoting inflammation rather than repair.[22][23]

She has organized national NIH- and AAOS-sponsored workshops on osteoarthritis prevention and the use of orthobiologics in regenerative medicine.[24] Her research has been funded by the National Institutes of Health, the U.S. Department of Defense,[25] and the U.S. Department of Veterans Affairs. In 2019, she received the Elizabeth Winston Lanier Kappa Delta Award from the AAOS.[26]

Professional affiliations

Chu is a member of the American Academy of Orthopaedic Surgeons (AAOS),[27] the American Orthopaedic Society for Sports Medicine (AOSSM),[28] and serves as an academic member-at-large of the National Academies of Sciences, Engineering, and Medicine Forum on Regenerative Medicine.[29]

Awards and recognition

Chu has received over 30 professional honors and awards, including:

References

  1. ^ "Pitt's Constance Chu on the leading edge of knee repair research". Pittsburgh Post-Gazette.
  2. ^ a b c "A veteran serving veterans: Orthopaedic surgeon reflects on time in military, medicine". Stanford Medicine. November 9, 2023.
  3. ^ "Orthopedic surgeon to know: Dr. Constance Chu of Stanford Medicine". February 19, 2018.
  4. ^ Tamayo, Andrea (November 9, 2023). "A veteran serving veterans: Orthopaedic surgeon reflects on time in military, medicine".
  5. ^ a b c d e f "Constance Chu".
  6. ^ "PEOPLE OF THE TIMES". University Times.
  7. ^ Shirley S. Wang (4 January 2010). "The Latest Front In the War on Arthritis". Wall Street Journal.
  8. ^ Reynolds, Gretchen (December 9, 2009). "Phys Ed: What Causes Early Arthritis in Knees?". The New York Times.
  9. ^ "ACUTE ACL: Immediate Treatment of ACL Injuries to Prevent Osteoarthritis". Stanford Health Care.
  10. ^ Chu, C. R.; Coutts, R. D.; Yoshioka, M.; Harwood, F. L.; Monosov, A. Z.; Amiel, D. (September 1995). "Articular cartilage repair using allogeneic perichondrocyte-seeded biodegradable porous polylactic acid (PLA): a tissue-engineering study". Journal of Biomedical Materials Research. 29 (9): 1147–1154. doi:10.1002/jbm.820290915. ISSN 0021-9304. PMID 8567713.
  11. ^ Chu, Constance R.; Lin, Diana; Geisler, Jessica L.; Chu, Charleen T.; Fu, Freddie H.; Pan, Yingtian (2004). "Arthroscopic microscopy of articular cartilage using optical coherence tomography". The American Journal of Sports Medicine. 32 (3): 699–709. doi:10.1177/0363546503261736. ISSN 0363-5465. PMID 15090388.
  12. ^ Chu CR, Williams AA, Tolliver D, Kwoh CK, Bruno S, Irrgang JJ. "Clinical optical coherence tomography of early articular cartilage degeneration in patients with degenerative meniscal tears." Arthritis Rheum. 2010;62(5):1412–1420.
  13. ^ Chu CR, Izzo NJ, Papas NE. Fu FH. "In vitro exposure to 0.5% bupivacaine is cytotoxic to bovine articular chondrocytes" Arthroscopy. 2006;22(7):693–699.
  14. ^ Karpie JC, Chu CR. "Lidocaine exhibits dose- and time-dependent cytotoxic effects on bovine articular chondrocytes in vitro." Am J Sports Med. 2007;35(10):1621–1627.
  15. ^ Williams A, Qian Y, Bear D, Chu CR. "Assessing degeneration of human articular cartilage with ultra-short echo time (UTE) T2* mapping" Osteoarthritis Cartilage. 2010;18(4):539–546.
  16. ^ Chu CR*, Williams AA, West RV, Qian Y, Fu FH, Do BH, Bruno S. Quantitative MRI UTE-T2* Mapping of Cartilage and Meniscus Healing after Anatomic Anterior Cruciate Ligament Reconstruction. Am J Sports Med, 2014 2014 Aug;42(8):1847-56. PMID 24812196.
  17. ^ Chu, Constance R.; Williams, Ashley A.; Erhart-Hledik, Jennifer C.; Titchenal, Matthew R.; Qian, Yongxian; Andriacchi, Thomas P. (2021). "Visualizing pre-osteoarthritis: Integrating MRI UTE-T2* with mechanics and biology to combat osteoarthritis-The 2019 Elizabeth Winston Lanier Kappa Delta Award". Journal of Orthopaedic Research. 39 (8): 1585–1595. doi:10.1002/jor.25045. PMC 11472663. PMID 33788306.
  18. ^ Chu CR, Andriacchi TP. "Dance between biology, mechanics, and structure: A systems-based approach to developing osteoarthritis prevention strategies." J Orthop Res. 2015;33(7):939–947.
  19. ^ Chu CR, Williams AA, Coyle CH, Bowers ME. "Early diagnosis to enable early treatment of pre-osteoarthritis." Arthritis Res Ther. 2012;14(3):212.
  20. ^ Payne, K.A.; Lee, H.H.; Haleem, A.M.; Martins, C.; Yuan, Z.; Qiao, C.; Xiao, X.; Chu, C.R. (August 2011). "Single intra-articular injection of adeno-associated virus results in stable and controllable in vivo transgene expression in normal rat knees". Osteoarthritis and Cartilage. 19 (8): 1058–1065. doi:10.1016/j.joca.2011.04.009. PMC 3139006. PMID 21571082.
  21. ^ Lee HH, O'Malley MJ, Friel NA, Payne KA, Qiao C, Xiao X, Chu CR. "Persistence, localization, and external control of transgene expression after single injection of adeno-associated virus into injured joints". Hum Gene Ther. 2013 Apr;24(4):457- 66. doi:10.1089/hum.2012.118. PMID 23496155
  22. ^ "Collaboration underway to advance future of biologics". Healio.com.
  23. ^ O'Donnell, Christian; Migliore, Eleonora; Grandi, Fiorella Carla; Koltsov, Jayme; Lingampalli, Nithya; Cisar, Cecilia; Indelli, Pier F.; Sebastiano, Vittorio; Robinson, William H.; Bhutani, Nidhi; Chu, Constance R. (2019). "Platelet-Rich Plasma (PRP) From Older Males With Knee Osteoarthritis Depresses Chondrocyte Metabolism and Upregulates Inflammation". Journal of Orthopaedic Research. 37 (8): 1760–1770. doi:10.1002/jor.24322. PMC 6824920. PMID 31042308.
  24. ^ Chu, Constance R.; Rodeo, Scott; Bhutani, Nidhi; Goodrich, Laurie R.; Huard, Johnny; Irrgang, James; LaPrade, Robert F.; Lattermann, Christian; Lu, Ying; Mandelbaum, Bert; Mao, Jeremy; McIntyre, Louis; Mishra, Allan; Muschler, George F.; Piuzzi, Nicolas S.; Potter, Hollis; Spindler, Kurt; Tokish, John M.; Tuan, Rocky; Zaslav, Kenneth; Maloney, William (15 January 2019). "Optimizing Clinical Use of Biologics in Orthopaedic Surgery: Consensus Recommendations From the 2018 AAOS/NIH U-13 Conference". Journal of the American Academy of Orthopaedic Surgeons. 27 (2): e50–e63. doi:10.5435/JAAOS-D-18-00305. ISSN 1940-5480. PMC 6314629. PMID 30300216.
  25. ^ Erickson, Mandy (February 21, 2019). "Orthopaedic surgeon receives prestigious award, $10 million grant".
  26. ^ a b "Kappa Delta Foundation Presents $60,000 in Orthopaedic Research Awards". Kappa Delta.
  27. ^ "Constance R. Chu, MD, FAAOS - Member of the Month". AAOS.
  28. ^ "Faculty". AOSSM.
  29. ^ "Forum on Regenerative Medicine". National Academies.
  30. ^ "Kappa Delta & Orthopaedic Research Education Foundation Award History" (PDF). AAOS.
  31. ^ "AOSSM presents prestigious research awards". EurekAlert!.
  32. ^ "30 of the most notable orthopedic surgeon achievements in 2019". July 16, 2019.
  33. ^ "Awards & Scholarships". AOSSM.

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