Knee Surgeons
Our knee surgeons perform knee replacements as a treatment for degenerative joint disease as well as other procedures for chronic knee pain.
Knee Replacement Surgeons
![Sumon Nandi, MD, MBA, FAOA](https://cdn-images.kyruus.com/providermatch/umms/photos/200/nandi-sumon-1316114242.jpg)
Sumon Nandi, MD, MBA, FAOA
Associate Professor of Orthopaedics, University of Maryland School of Medicine, Chief of Adult Reconstruction
![Marissa Elizabeth Bonyun, MD, MEd](https://cdn-images.kyruus.com/providermatch/umms/photos/200/bonyun-marissa-1790338341.jpg)
Marissa Elizabeth Bonyun, MD, MEd
Assistant Professor of Orthopaedics, University of Maryland School of Medicine
Knee Replacement Care Team
![Jamie Harris](/ummc/-/media/images/ummc/health-services/orthopedics/team-members/hip-knee/jamie-harris.jpg?h=345&w=275&la=en&hash=5899CBB6B61934A4D48B49B51DE17784)
Jaime Harris, MS, LAT, ATC, OPE-C
Athletic Trainer and Physician Extender
![Casey Loudermilk](/ummc/-/media/images/ummc/health-services/orthopedics/team-members/hip-knee/zakiya.jpg?h=345&w=275&la=en&hash=C1B0342FEFC47D5F1B1D35914DBFC44D)
Zakiya Johnson-Blackston
Total Joint Replacement Surgical Scheduler
![Pam Wilson](/ummc/-/media/images/ummc/health-services/orthopedics/team-members/hip-knee/pam-wilson.jpg?h=345&w=275&la=en&hash=A788C369C8FFAE051E34CD92F73033AF)
Pam Wilson, BSN, RN
Total Joint Replacement Nurse Coordinator
![Julie Yetso](/ummc/-/media/images/ummc/health-services/orthopedics/team-members/hip-knee/julie-yetso.jpg?h=345&w=275&la=en&hash=ED850043E08E73E1B8464EABEF1C48E4)
Julie Yetso, PA-C
Senior Physician Assistant
Acute Injury Knee Surgeons
Acute knee surgeons see patients for specific knee injuries such as ACL injuries or meniscus tears.
![R. Frank Henn, III, MD](https://kyruus-app-static.kyruus.com/providermatch/umms/photos/200/henn-ralph-1144497959.jpg)
R. Frank Henn, III, MD
Professor and Interim Chair of Orthopaedics, University of Maryland School of Medicine; Chief of Sports Medicine
![Jonathan D. Packer, MD](https://cdn-images.kyruus.com/providermatch/umms/photos/200/packer-jonathan-1780818674.jpg)
Jonathan D. Packer, MD
Associate Professor of Orthopaedics, University of Maryland School of Medicine