Casey Jo Humbyrd, MD

Adjunct Faculty


4940 Eastern Ave
Baltimore, MD, 21224
  • Adjunct Faculty
    Berman Institute of Bioethics

Casey Jo Humbyrd, MD, is an adjunct faculty member of the Berman Institute of Bioethics. Dr. Humbyrd received her B.A. from the University of Pennsylvania and her M.D. from the Mount Sinai School of Medicine. During medical school, she participated in a month-long ethics fellowship at the University of Oxford.  After medical school, Dr. Humbyrd completed her residency in Orthopaedic Surgery at Johns Hopkins School of Medicine followed by a foot and ankle fellowship at Mercy Medical Center. Dr. Humbyrd’s research interest focus on ethical concerns related to surgery in general and orthopedic surgery in particular. Her current primary research interest revolves around the ethics of bundled payment programs for total joint replacement, ethical use of opioids in orthopedic surgery, and disparities in access to orthopedic care. She is a quarterly columnist on orthopedic ethical issues for the journal of Clinical Orthopaedics and Related Research. Nationally, she is involved in advocacy work as a delegate to the American Medical Association and Chair of the health policy committee of the American Orthopaedic Foot and Ankle Society. Dr. Humbyrd is also the faculty advisor for the Johns Hopkins medical student section of MedChi and the AMA.

Research Interests

  • Ethical concerns related to surgery in general and orthopedic surgery in particular
  • Ethics of bundled payment programs for total joint replacement
  • Assessing orthopedic surgeon attitudes about ethical issues
  • Patient selection for elective surgery
  • The ethics of concurrent surgery


  • B.A., University of Pennsylvania
  • M.D., Mount Sinai School of Medicine

Recent Publications

  1. Humbyrd CJ. Virtue Ethics in a Value-driven World: Medical Training and Moral  Distress. Clin Orthop Relat Res. 2019 Feb 6. doi: 10.1097/CORR.0000000000000643.
  2. Kaas BM, Humbyrd CJ, Pantelyat A. Functional Movement Disorders and Placebo: A Brief Review of the Placebo Effect in Movement Disorders and Ethical Considerations for Placebo Therapy. Mov Disord Clin Pract. 2018 Oct9;5(5):471-478. doi: 10.1002/mdc3.12641. eCollection 2018 Sep-Oct. Review.
  3. Humbyrd CJ. Virtue Ethics in a Value-driven World: Can I Respect Autonomy Without Respecting the Person? Clin Orthop Relat Res. 2019 Feb;477(2):293-294.
  4. Wang AY, Wong MS, Humbyrd CJ. Eligibility Criteria for Lower Extremity Joint Replacement May Worsen Racial and Socioeconomic Disparities. Clin Orthop Relat Res. 2018 Dec;476(12):2301-2308. doi: 10.1097/CORR.0000000000000511.
  5. Humbyrd CJ, Rieder TN. Ethics and Limb Salvage: Presenting Amputation as a Treatment Option in Lower Extremity Trauma. J Bone Joint Surg Am. 2018 Oct 3;100(19):e128. doi: 10.2106/JBJS.17.01522.
  6. Humbyrd CJ. Virtue Ethics in a Value-driven World: Bias in Orthopaedics. Clin Orthop Relat Res. 2018 Nov;476(11):2135-2137. doi: 10.1097/CORR.0000000000000488.PubMed PMID: 30247236; PubMed Central PMCID: PMC6259985.
  7. Humbyrd CJ, Hutzler L, DeCamp M. The Ethics of Success in Bundled Payments: Respect, Beneficence, and Social Justice Concerns. Am J Med Qual. 2019 Mar/Apr;34(2):202-204. doi: 10.1177/1062860618792092. Epub 2018 Aug 6.
  8. Humbyrd CJ. Complex Obesity: Multifactorial Etiologies and Multifaceted Responses. Am J Bioeth. 2018 Jul;18(7):87-89. doi: 10.1080/15265161.2018.1478042. PubMed PMID: 30040569.
  9. Humbyrd CJ. The Ethics of Bundled Payments in Total Joint Replacement: “Cherry Picking” and “Lemon Dropping.” J Clin Ethics. 2018 Spring;29(1):62-8. PubMed PMID: 29726671.
  10. Humbyrd CJ, Bae S, Kucirka LM, Segev DL. Incidence, Risk Factors, and Treatment of Achilles Tendon Rupture in Patients With End-Stage Renal Disease. Foot Ankle Int. 2018 Jul;39(7):821-828. doi: 10.1177/1071100718762089. Epub 2018 Mar 27. PubMed PMID: 29582683; PubMed Central PMCID: PMC6023765.
  11. Humbyrd CJ, Sugarman J. Ethical Considerations Related to Impaired Driving After Orthopaedic Injuries. J Bone Joint Surg Am. 2016 Jul 20;98(14):e60. doi:10.2106/JBJS.15.00875. PubMed PMID: 27440576.
  12. Humbyrd CJ, Capozzi JD, Rhodes R. Judgments about deservingness. J Bone Joint Surg Am. 2013 Oct 2;95(19):e1451-3. doi: 10.2106/JBJS.L.00983. PubMed PMID: 24088980.
  13. Humbyrd C. Fair trade international surrogacy. Dev World Bioeth. 2009 Dec;9(3):111-8. doi: 10.1111/j.1471-8847.2009.00257.x. Epub 2009 Jun 8. PubMed PMID: 19508290.