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Steven B. Haas, MD

Hip and Knee Replacement Surgeon
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About Dr. Haas


Dr. Steven B. Haas received his education and training at Harvard, Cornell and the University of Rochester. He is Chief of the Knee Service at Hospital for Special Surgery. Dr. Haas speaks extensively both nationally and internationally on knee topics, and has authored more than 100 publications in the orthopedic literature.

Dr. Haas received a United States patent for developing a groundbreaking surgical technique for performing minimally invasive knee replacement, which allows patients to recover more rapidly. He has been featured as a developer and expert on minimally invasive knee replacement on WNBC News, WCBS News, and NY1 News, as well as in a U.S. News & World Report photo essay "To Build a Knee," Runner magazine, the New York Daily News, and the Cleveland Clinic Newsletter. He performed a minimally invasive knee replacement surgery that was broadcast live via webcast and also covered by WCBS News via their Twitter feed.

Dr. Haas has received numerous patents for innovative High Performance Knee Replacement designs that move more naturally than previous knee implants.  CBS News with Katie Couric and Sanjay Gupta featured a segment with Dr. Haas focusing on high performance gender-specific knee replacement. He has appeared on WABC News and in U.S. News & World Report as an expert on gender knee replacement.

Dr. Haas developed patient-matched techniques, which use computer-generated personalized instruments to accurately perform minimally invasive knee replacement. He appeared on WCBS News on custom knee replacements.

Cutting-edge technologies employed by Dr. Haas include robotic-assisted replacement, patient-specific instrumentation and accelerometer-based computer navigation. Dr. Haas also performs minimally invasive robotic-assisted partial knee replacement.

Advances in surgical techniques and pain control allow for more rapid recovery from knee replacement. As a result, many of Dr. Haas' patients are able to go home the same day of surgery. One of his patients who went home the same day was featured on WCBS News along with Dr. Haas.

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Specialized Centers

Complex Joint Reconstruction Center


Patient ratings for Dr. Haas


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If your insurance is not listed, please call our office if you have questions regarding your insurance coverage. If you have out-of-network benefits, then your insurance may reimburse you for a portion of your office visit. We will work with you and your insurance to minimize your out-of-pocket costs. Financial assistance may be available for patients in need.



Chief of Knee Service, Hospital for Special Surgery
John N. Insall Chair, Knee Surgery
Attending Orthopedic Surgeon, Hospital for Special Surgery
Professor of Clinical Orthopedic Surgery, Weill Cornell Medical College
Attending Orthopedic Surgeon, NewYork-Presbyterian Hospital


Knee Society
American Academy of Orthopedic Surgeons
American Association of Hip and Knee Surgeons


Board Certified Orthopaedic Surgery
American Board of Orthopaedic Surgery


Castle Connolly Top Doctor, 15 Years
Castle Connolly America's Top Doctors, 2008-2020
Castle Connolly Top Doctors in New York Metro Area, 2006-2022
New York Magazine Top Doctors, 2007-2022
Healthnetwork Service Excellence Award, 2010
Phi Beta Kappa
Alpha Omega Alpha, National Honor Medical Society
Magna Cum Laude
Lewis Clark Wagner Research Award for Best Research Paper by a Resident, 1989
University Scholar in Medicine-Granted Early Admission to Medical School Through the University's "Rochester Plan" Program


MD & MPH, University of Rochester School of Medicine, New York


Hospital for Special Surgery, New York


Hospital for Special Surgery, Knee Service, New York

State Licensure



For My Patients

Publications by Dr. Haas

Patient Education

Selected Journal Articles

Selected Books/Chapters

Haas SB. Lehman A, Manitta M. Minimally Invasive Total Knee Replacement Through A Mini Mid Vastus Approach. In Tria, F; Berger, R; MIS Techniques in Orthopedics. Springer-Verlag, New York.

Haas SB, Lehman A, Cook S. Minimally Invasive Total Knee Replacement. Bellemans, J; Reis, M. D; Victor, J: . Springer, New York.


Industry Relationships

Industry Relationships

HSS has a long history of supporting appropriate relationships with industry because they advance HSS's mission to provide the highest quality patient care, improve patient mobility, and enhance the quality of life for all, and to advance the science of orthopedic surgery, rheumatology, and their related disciplines through research and education.

Below are the healthcare industry relationships reported by Dr. Haas as of May 11, 2024.

  • Hereaus Medical USA - Consultant 
  • HS2,LLC - Ownership Interest
  • HSS ASC Development Network, LLC - Ownership Interest
  • Joint Effort Administrative Services Organization - Ownership Interest
  • Knee Society - Board or Committee Member
  • OrthAlign - Consultant; Royalties     
  • Smith & Nephew - Consultant; Research Support; Royalties

HSS and its physicians make this information available to patients and the public, thus creating a transparent environment for those who are interested in this information. Further, the HSS Conflicts of Interest and Commitment Policy prohibits physicians from collecting royalties on products they develop that are used on patients at HSS.

Patients should feel free to ask their HSS physicians questions about these relationships.

Dr. Haas in the News