Rex Haydon, MD, PhD, focuses on the comprehensive treatment of malignant and benign tumors in bone or soft tissue. He specializes in the surgical care of bone and soft tissue tumors, including limb-salvage and reconstructive surgery of the upper and lower extremities. Dr. Haydon works with an integrated team of specialists to ensure that patients have access to the most innovative and effective treatment options available.
Also a skilled physician scientist, his research focuses on advancing the treatment of musculoskeletal tumors. Dr. Haydon has a particular interest in the underlying causes of musculoskeletal neoplasms. Author of more than 25 articles and book chapters, he has accepted career development awards from both the Orthopaedic Research and Education Foundation and the National Institutes of Health. Additionally, Dr. Haydon's research has been supported by the Musculoskeletal Tumor Foundation.
The University of Chicago
Chicago, Illinois
Orthopaedic Fellowship - Oncology
2003
The University of Chicago
Chicago, Illinois
Orthopaedic Fellowship - Research
2002
The University of Chicago
Chicago, Illinois
Resident - Orthopaedic Surgery
2001
The University of Chicago
Chicago, Illinois
Ph.D - Anthropology
1996
The University of Chicago
Chicago, Illinois
M.A. - MAPSS (Social Sciences),
1993
The University of Chicago
Chicago, Illinois
B.A. - Anthropology
1988
A modified Delphi consensus on tenosynovial giant cell tumour and giant cell tumour of bone : a report from the Birmingham Orthopaedic Oncology Meeting (BOOM).
A modified Delphi consensus on tenosynovial giant cell tumour and giant cell tumour of bone : a report from the Birmingham Orthopaedic Oncology Meeting (BOOM). Bone Joint J. 2026 Jun 09; 108-B:1045-1051.
PMID: 42261942
Complications of PI to PIII hemipelvic resections for intermediate and malignant tumours : a systematic review and meta-analysis.
Complications of PI to PIII hemipelvic resections for intermediate and malignant tumours : a systematic review and meta-analysis. Bone Jt Open. 2026 Jun 01; 7(6):713-723.
PMID: 42219227
Can ChatGPT-4 replace orthopedic question banks? Evaluating AI's ability to write questions for the orthopedic in-training exam.
Can ChatGPT-4 replace orthopedic question banks? Evaluating AI's ability to write questions for the orthopedic in-training exam. Curr Probl Surg. 2026 Jan; 74:101943.
PMID: 41513387
A modified Delphi consensus on periprosthetic infection in orthopaedic oncology : a report from the Birmingham Orthopaedic Oncology Meeting (BOOM).
A modified Delphi consensus on periprosthetic infection in orthopaedic oncology : a report from the Birmingham Orthopaedic Oncology Meeting (BOOM). Bone Joint J. 2025 Dec 01; 107-B(12):1352-1359.
PMID: 41319695
What is debridement, antibiotics, and implant retention in orthopaedic oncology? : a global cross-sectional survey of surgeons' practices and opinions.
What is debridement, antibiotics, and implant retention in orthopaedic oncology? : a global cross-sectional survey of surgeons' practices and opinions. Bone Jt Open. 2025 Nov 20; 6(11):1495-1503.
PMID: 41260234
Endocrine therapy resistance of breast cancer: Important role of G protein-coupled estrogen receptor (GPER) and new therapeutic strategies.
Endocrine therapy resistance of breast cancer: Important role of G protein-coupled estrogen receptor (GPER) and new therapeutic strategies. Genes Dis. 2026 Jan; 13(1):101716.
PMID: 41141392
Comparative Analysis of Knee Osteoarthritis Treatment Information on Popular Social Media Platforms.
Comparative Analysis of Knee Osteoarthritis Treatment Information on Popular Social Media Platforms. J Am Acad Orthop Surg Glob Res Rev. 2025 Jun 01; 9(6).
PMID: 40505122
Diagnostic accuracy of ChatGPT-4 in orthopedic oncology: a comparative study with residents.
Diagnostic accuracy of ChatGPT-4 in orthopedic oncology: a comparative study with residents. Knee. 2025 Aug; 55:153-160.
PMID: 40311171
Identifying consensus and areas for future research in chondrosarcoma : a report from the Birmingham Orthopaedic Oncology Meeting.
Identifying consensus and areas for future research in chondrosarcoma : a report from the Birmingham Orthopaedic Oncology Meeting. Bone Joint J. 2025 Feb 01; 107-B(2):246-252.
PMID: 39889743
Effective Bone Tissue Fabrication Using 3D-Printed Citrate-Based Nanocomposite Scaffolds Laden with BMP9-Stimulated Human Urine Stem Cells.
Effective Bone Tissue Fabrication Using 3D-Printed Citrate-Based Nanocomposite Scaffolds Laden with BMP9-Stimulated Human Urine Stem Cells. ACS Appl Mater Interfaces. 2025 01 08; 17(1):197-210.
PMID: 39718997
Orlov Visiting Professor in Orthopaedic Oncology
Loyola University of Chicago
2018
Senior Faculty Scholar
Bucksbaum Institute for Clinical Excellence
2017
Gerald S. Laros Resident Teaching Award
2011
Keynote Speaker
Pritzker School of Medicine White Coat Ceremony
2010
American-British-Canadian Traveling Fellowship, AOA
2009
Induction into ??? (Beta Chapter) as Faculty member by Pritzker School of Medicine
2008
Gerald S. Laros Resident Teaching Award
2007
Orthopaedic Research Society Career Development Award
2006
Kappa Delta Ann Doner Vaughan Award, Co-Recipient, AAOS/ORS
2006
Marshall R. Urist Young Investigator Award, Association of Bone & Joint Surgeons
2006
John J. Fahey, MD Memorial North American Traveling Fellowship, AOA
2005
K08 Mentored Clinical Scientist Development Award, NIH-NIAMS
2004 - 2009
Thomas M. Coffman OREF Career Development Award
2003 - 2005
Best Poster Award: Charles Huggins Conference: “Upregulation Of cKit In Giant Cell Tumor of Bone: Po
2002
Howard Schneider Award for Best Manuscript at the OREF Midwest Conference
2000