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William J. Long, MD, FRCSC

Hip and Knee Replacement

About Dr. Long


Dr. William J. Long is a board certified Attending Orthopedic Surgeon at HSS specializing in adult hip and knee reconstruction, revision joint replacements and sports injuries of the knee.

Dr. Long previously served as an attending orthopedic surgeon at the Insall Scott Kelly Institute for Orthopaedics and Sports Medicine in New York City. He was also a clinical associate professor at NYU Langone Orthopaedic Hospital and assistant program director of the ISK/NYU Adult Reconstruction Fellowship, as well as former director of research at St. Francis Hospital in Roslyn, New York.

Dr. Long completed his undergraduate degree at Queen’s University at Kingston, in Ontario, Canada, and his medical degree at the University of Western Ontario. He completed a residency in orthopedic surgery, also at Queen’s University, a fellowship in lower extremity adult reconstruction at the Mayo Clinic and a second fellowship in sports medicine and reconstruction at the Insall Scott Kelly Institute. 

The author of more than 50 peer-reviewed papers in the last decade, Dr. Long is also editor and author of a number of textbooks on hip and knee reconstruction. He has been an invited speaker at numerous national and international meetings for more than a decade.

Dr. Long is the recipient of the 2019 Frank Stichfield Award from the Hip Society, as well as the first-ever TriOrg grant from the American Academy of Hip and Knee Surgeons and the Hip Society and Knee Society.


Special Expertise

Adult hip and knee reconstruction
Knee sports medicine
Revision joint replacements


Adult hip and knee reconstruction
Revision joint replacements
Sports medicine and reconstruction of the knee

Patient Stories

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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.



Associate Attending Orthopaedic Surgeon, Hospital for Special Surgery
Associate Professor of Clinical Orthopedic Surgery, Weill Cornell Medical College
Assistant Attending Orthopedic Surgeon, NewYork-Presbyterian Hospital


Fellow AAOS
Fellow Royal College of Physicians and Surgeons of Canada
Member AAHKS


American Board of Orthopaedic Surgery


Frank Stinchfield Award from the Hip Society 2019
FARE Grant Award AAHKS 2019
TriOrg Grant AAHKS, Hip Society, Knee Society 2019
Bill Jaffe Award best paper 2016-2020


University of Western Ontario, Canada 2000


Queens University at Kingston General Hospital, Canada 2001


Queens University at Kingston General Hospital, Canada 2000-2005


Mayo Clinic adult hip and knee reconstruction 2006
ISK Institute Joint reconstruction and sports medicine 2007

State Licensure


English, French

For My Patients

Publications by Dr. Long

Patient Education

Selected Books/Chapters

Garceau S, Long WJ, Schwarzkopf R. Patellofemoral Arthroplasty. Essentials of Cemented Knee Arthroplasty.
Springer 2020.

Greenbaum S, Old A, Long WJ Scott WN. Special Considerations in Primary Total Knee Arthroplasty. Chapter 11. Orthopaedic Knowledge Update Hip and Knee Reconstruction 6. 2019.

Long WJ, Scuderi GR. Fixed Varus and Valgus Deformities. In: Master Techniques in Knee Surgery: Knee
Arthroplasty. Pagnano M, Hanssen AD eds. Chapter 2018.

Knee Society Virtual Fellowship 2017: Long WJ, Dia A. Total Knee Arthroplasty with Conventional Instrumentation.

Kim KY, Anoushiravani AA, Long WJ, Iorio R. Management of Post-Traumatic Arthritis.

Textbook Senior Section Editor: Primary and Revision Total Knee Arthroplasty. The Knee: Insall Scott 6th Edition.

Long WJ et al. Clinical Examination of the Knee. Chapter 3 in The Knee: Insall Scott 6th Edition.

Long WJ et al. Posterior Cruciate Substituting Total Knee Arthoplasty. Chapter 142 in The Knee: Insall Scott 6th

Long WJ et al. Surgical Approaches in Total Knee Arthoplasty. Chapter 151 in The Knee: Insall Scott 6th Edition.

Long WJ et al. Robotic Unicompartmental Knee Arthroplasty. Chapter 165 in The Knee: Insall Scott 6th Edition.

Textbook Editor: Atlas of Revision Hip and Knee Arthroplasty. Scuderi, Long, Tria, Kang eds. Elsevier. 2014.

Selected Journal Articles

Comparative Analysis of Outcomes in Medicare-Eligible Patients with a Hospital Stay Less than Two-Midnights
versus Longer Length of Stay following Total Knee Arthroplasty: Implications for Inpatient-Outpatient Designation.
Singh V, Lygrisse KA, Macaulay W, Slover JD, Schwarzkopf R, Long WJ. J Knee Surg. 2021 Feb 5. doi: 10.1055/s-0041-1723015. Online ahead of print. PMID: 33545728

Surgical Approach to Total Hip Arthroplasty Affects the Organism Profile of Early Periprosthetic Joint Infections.
Buchalter DB, Teo GM, Kirby DJ, Aggarwal VK, Long WJ. JB JS Open Access. 2020 Nov 25;5(4):e20.00111. doi: 10.2106/JBJS.OA.20.00111. eCollection 2020 Oct-Dec. PMID: 33376926 Free PMC article.

Does the Organism Profile of Periprosthetic Joint Infections Change With a Topical Vancomycin Powder and Dilute Povidone-Iodine Lavage Protocol? Buchalter DB, Teo GM, Kirby DJ, Schwarzkopf R, Aggarwal VK, Long WJ. J Arthroplasty. 2020 Dec 26:S0883-5403(20)31296-1. doi: 10.1016/j.arth.2020.12.036. Online ahead of print. PMID: 33526397

Aspirin Use for Venous Thromboembolism Prevention Is Safe and Effective in Overweight and Obese Patients Undergoing Revision Total Hip and Knee Arthroplasty. Tang A, Sicat CS, Singh V, Rozell JC, Schwarzkopf R, Long WJ. J Arthroplasty. 2020 Dec 11:S0883-5403(20)31245-6. doi: 10.1016/j.arth.2020.12.006. Online ahead of print. PMID: 33376036

In a Bundled Payment Model, the Costs Associated With Total Joint Replacement in Those Aged Older Than 80 Years Are Significantly Greater. Zak SG, Lygrisse KA, Tang A, Bosco JA, Schwarzkopf R, Long WJ. J Arthroplasty. 2020 Dec 1:S0883-5403(20)31227-4. doi: 10.1016/j.arth.2020.11.036. Online ahead of print. PMID: 33358513

Ethical Implications of Resuming Elective Orthopedic Surgery During the COVID-19 Pandemic. Moses MJ, Bosco JA III, Schwarzkopf R, Zuckerman JD, Long WJ. Bull Hosp Jt Dis (2013). 2020 Dec;78(4):221-226. PMID: 33207142

Differences in Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) Scores for a Single Surgeon Comparing Two Institutions: An Unfair Reimbursement Metric. Mahure SA, Teo GM, Long WJ. J Arthroplasty. 2021 Feb;36(2):403-411. doi: 10.1016/j.arth.2020.08.062. Epub 2020 Sep 7. PMID: 33039193

The Implications of Aging Population Demographics on the Delivery of Primary Total Joint Arthroplasty in a Bundled Payment System. Petersen WP Jr, Teo GM, Friedlander S, Schwarzkopf R, Long WJ. J Bone Joint Surg Am. 2020 Oct 7;102(19):1679-1686. doi: 10.2106/JBJS.19.01264. PMID: 33027121

Topical Vancomycin Powder and Dilute Povidone-Iodine Lavage Reduce the Rate of Early Periprosthetic Joint Infection After Primary Total Knee Arthroplasty. Buchalter DB, Kirby DJ, Teo GM, Iorio R, Aggarwal VK, Long WJ. J Arthroplasty. 2021 Jan;36(1):286-290.e1. doi: 10.1016/j.arth.2020.07.064. Epub 2020 Jul 31. PMID: 32919848

Revision total hip arthroplasty is associated with significantly higher opioid consumption as compared to primary total hip arthroplasty in the acute postoperative period. Bernstein JA, Feng J, Mahure SA, Schwarzkopf R, Long WJ. Hip Int. 2020 Sep;30(1_suppl):59-63. doi: 10.1177/1120700020938324. PMID: 32907423

Active Robotic Total Knee Arthroplasty (TKA): Initial Experience with the TSolution One ® TKA System. Chan J, Auld TS, Long WJ, Kreuzer S, Campanelli V, Liebelt R, Kissin YD. Surg Technol Int. 2020 Nov 28;37:299-305. PMID: 32681727

For more publications, please see the PubMed listing.

Selected Presentations

AAHKS Dallas November, 2020. Podium Presentation. "Do TJA PJI organism profiles change with vancomycin powder and dilute povidone-iodine lavage?"

European Knee Society Virtual Meeting September 2020. Guest speaker: Active robotic total knee arthroplasty

AAOS Virtual Meeting March 2020. Poster Presentations. Differences in Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) Scores for a SingleSurgeon Comparing Two Institutions

Annual International Meeting "Vreden Readings", St. Petersburg, Russia. September 2019. Invited Faculty Symposium: Global Trends in Knee Arthroplasty: US Perspective

Indian Arthroplasty Association (IAACON) Mumbai, India. September 2019. Invited Faculty: Active Robotic Total Knee Replacement

Ecuadorian Orthopaedic Society Meeting, Guayaquil, Ecuador. July 2019. Guest speaker: Instability in THA: The Hip-spine Relationship

European Knee Society. Valencia, Spain. May 2019. Speaker: Stiffness in TKA and Revision Total Knee Replacement

Masterclass in Arthroplasty Surgery Thessaloniki, Greece December 2018. Invited International Faculty. Speaker: The Valgus Knee (video). Speaker: Mesh extensor reconstruction in Revision TKA (video)

COA/ICJR Xiamen, China November 2018. Invited Faculty: Who Should We operate on in TJA?

Course Director 2010-2018: ISK Annual Meeting and Transaltlantic Orthopaedic Congress ICJR, New York, NY


Adult hip and knee reconstruction.
Robotic and robotic assisted joint replacements.
Revision joint replacements
Machine learning
Infection prevention strategies in primary and revision joint replacements.
Ethics in joint replacements.
Fellowship education and joint replacement outcomes
Patient related outcome scores following total joint replacements
Population demographics and the delivery of joint replacement care

Industry Relationships

Industry Relationships

One of the goals of HSS is to advance the science of orthopedic surgery, rheumatology, and related disciplines for the benefit of patients. Physicians at HSS may collaborate with outside companies for education, research and medical advances. HSS supports this collaboration in order to foster medical breakthroughs; however HSS also believes that these collaborations must be disclosed.

As part of the disclosure process, this website lists physician collaborations with outside companies. The disclosures are provided by information provided by the physician and other sources and are updated regularly. Further information may be available on individual company websites.

Below are the healthcare industry relationships reported by Dr. Long as of July 09, 2021.


  • Aerobiotics- Consultant
  • Centrexion- Consultant
  • Convatec- Consultant
  • Depuy Synthes- Consultant
  • East Hills Surgery Center- Ownership Interest
  • Elsevier, Inc- Author
  • KCI,USA- Consultant
  • Microport- Consultant
  • Midtown Surgery Center- Ownership Interest
  • Ortho Development Corp- Royalties
  • Surgery of the Westside- Ownership Interest
  • Think Surgical, Inc.- Consultant
  • Total Joint Orthopedics- Consultant
  • Zimmer Biomet- Consultant


By disclosing the collaborations of HSS physicians with industry on this website, HSS and its physicians make this information available to their patients and the public, thus creating a transparent environment for those who are interested in this information. Further, the HSS Conflicts of Interest Policy does not permit physicians to collect royalties on products developed by him/her that are used on patients at HSS.

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