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Alejandro Leali, MD

Orthopedic Surgery


Dr. Alejandro Leali has served as Medical Director of the Adult Ambulatory Care Center at Hospital for Special Surgery since 2006. Throughout his career in medicine, Dr. Leali has developed strong clinical interests in the treatment of avascular necrosis and in the areas of hip and knee reconstruction. Trained in orthopedic surgery, as well as in physiatry, Dr. Leali focuses on both the operative and non-operative treatment of orthopedic conditions, allowing him a cumulative understanding of the orthopedic patient.

Born in Buenos Aires, Argentina, Dr. Leali earned his medical degree from the University of Buenos Aires and continued his orthopedic surgical training in the city until traveling to Boston to complete an internship in Medicine and Surgery at Carney Hospital (Boston University).

Following his time in Boston, Dr. Leali furthered his postgraduate orthopedic surgery education at New York University Medical Center (NYUMC) by completing a clinical research fellowship in Hip and Knee reconstruction.

He has received a number of research grants and has conducted clinical trials regarding such conditions as DVT prophylaxis after joint replacements, avascular necrosis of the hip, preservation of bone stock after cementless total hip replacements. Additionally, his research has been internationally recognized; Dr. Leali has received awards from the Japanese Orthopedic Association, Société Internationale de Chirurgie Orthopédique et de Traumatologie (SICOT), and New York University.

Dr. Leali is a peer reviewer for several medical journals, including Clinical Orthopedics and Related Research and International Orthopedics and currently serves as Associate Senior Editor of the HSS Journal.

Dr. Leali is part of the teaching faculty at HSS and is deeply involved in the education of future generations of orthopedic surgeons. Dr. Leali focuses his teaching in the acquisition of surgical skills and general orthopedic knowledge early on in their careers. 


Special Expertise

Avascular Necrosis
Hip and Knee Reconstruction

Patient Stories


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


American Academy of Orthopedic Surgeons (AAOS)
Argentine Academy of Orthopedics and Traumatology (AAOT)
North American Spine Society (NASS)
Latin American Orthopedic Surgery and Traumatology Society (SLAOT)


Argentine Board of Orthopedic Surgery


MD, University of Buenos Aires, School of Medicine


Carney Hospital - Boston University - Boston, MA


New York University Medical Center - New York University


New York University Medical Center - New York University

State Licensure


English, Spanish, Italian

Publications by

Editorial Appointments

Corresponding Member (USA), International Orthopedics
Peer Reviewer, Clinical Orthopedics and Related Research
Senior Associate Editor, HSS Journal

Selected Journal Articles

Leali A, Fetto J, Moroz A. “Evolution of the Koch Model of Hip Biomechanics. A Clinical View.” Journal of Orthopaedic Science. (67) 6: 724-730. (2002).

Leali A, Fetto J, Moroz A. “Prevention of Thromboembolic Disease After Non-Cemented Hip Arthroplasty: A Multimodal Approach." Acta Orthopaedica Belgica. (68) 2: 128-134. (2002).

Leali A, Fetto J, Hale J. “Bio-Structural Augmentation for the Treatment of Osteonecrosis: Rationale, Technique, and Case Example.” Journal of the Southern Orthopaedic Association.  (11) 3: 167-171. (2002).

Leali A, Fetto J. “The Effect of a Lateral Flare Feature on Implant Stability.” International Orthopaedics. (26) 166-169. (2002).

Ragucci M, Leali A, Moroz A, Fetto J. “Comprehensive Deep Venous Thrombosis Prevention Strategy After Total-Knee Arthroplasty.” American Journal of Physical Medicine and Rehabilitation. (82) 3: 164-168. (2003).

Leali A, Fetto J. "Preservation of Femoral Bone Mass After Total Hip Replacements with a Lateral Flare Stem. Analysis with Dual-energy X-ray Absorptiometry." International Orthopaedics. (28) 3: 151-154. (2004).

Leali A, Fetto J, Insler H. "Favorable Mid-term Results of Total Hip Arthroplasties with a Lateral Flare Uncemented Stem." Clinical Orthopaedics and Related Research. (450) 138-144. (2006).

Volokh KY, Yoshida H, Leali A, Fetto JF, Chao EY.0Prediction of Femoral Head Collapse in Osteonecrosis.” Journal of Biomechanical Eng. Jun;128(3): 467-70. (2006).

Della Valle AG, Leali A, Haas S. “Etiology and Surgical Interventions for Stiff Total Knee Replacements.” HSS Journal. (3) 2: 182-189. (2007).

Leali A, Fetto JF. “Promising Mid-term Results of Total Hip Arthroplasties Using an Uncemented Lateral-flare Hip Prosthesis: A Clinical and Radiographic Study.” International Orthopaedics. Dec;31(6): 845-9. (2007).

For more publications, please see the PubMed listing.


Research Interests

Avascular Necrosis
Hip and Knee Reconstruction

Clinical Trials

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.

As of November 14, 2019, Dr. Leali reported no relationships with healthcare industry.

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.

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