Dr. Ast is an Orthopedic Surgeon in Adult Reconstruction and Joint Replacement the Complex Joint Reconstruction Center He is also the Chief Medical Innovation Officer at HSS. His focus is primarily on rapid-recovery, short-stay and outpatient joint replacement surgery of the hip and knee, including primary, complex and revision total joint replacement. His training includes minimally invasive hip and knee replacement, partial knee replacement, robotic surgery and computer assisted surgery.

What are Dr. Ast's specialties?

Dr. Ast specializes in partial and total knee replacement , minimally invasive hip and knee replacement , rapid recovery, short stay and outpatient joint replacement , and total hip replacement .

What are Dr. Ast's certifications?

Dr. Ast is board certified by the American Board of Orthopedic Surgery.

> Skip repeated content

Michael P. Ast, MD

Hip and Knee Replacement Surgeon

About Dr. Ast

Dr. Michael P. Ast is Chief of the Knee Service, Chief Medical Innovation Officer and Director of Ambulatory Surgery Center Strategy at HSS. He is a hip and knee replacement surgeon focusing on rapid-recovery, short-stay and outpatient joint replacement surgery. His practice includes primary, complex and revision total joint replacement, including minimally invasive hip and knee replacement and partial knee replacement. He is an expert in robotics and computer-assisted surgery for hip and knee replacements. He holds the John N. Insall Endowed Chair of the Knee Service and is a member of the prestigious Knee Society.

Dr. Ast has extensive experience with, and has published research on, patient-specific instruments and implants, technology and innovation in medicine, opioid sparing pain management and rapid recovery. He also helps design innovative surgical technology and implants with leading companies. Numerous surgeons from around the world have visited his operating room to learn the newest techniques in rapid recovery, robotic and technology assisted surgery.

Dr. Ast has published and presented over 500 articles, chapters and invited lectures in peer-reviewed journals, textbooks and national and international conferences, including on the newest technology and innovation in orthopaedic surgery and patient recovery, including his groundbreaking research in partnership with his HSS Anesthesia colleagues on the use of Acupuncture during orthopaedic surgery.

Dr. Ast graduated Magna Cum Laude in Biology and Phi Beta Kappa from Temple University, where he was a Division I gymnast. He completed his Medical Degree at Temple University School of Medicine, his orthopedic surgery residency at North Shore-Long Island Jewish Medical Center and his fellowship in Adult Reconstruction and Joint Replacement surgery at HSS.

Profile Video

Departments

Orthopedic Surgery
Hip and Knee Replacement

Specialized Centers

Complex Joint Reconstruction Center

Special Expertise

Partial and total knee replacement
Rapid recovery, short stay and outpatient joint replacement
Total hip replacement

Procedures

Computer-assisted partial and total knee replacement
Robotic-assisted partial and total knee replacement
Robotic-assisted total hip replacement

Patient Stories

Videos

Patient ratings for Dr. Ast

Learn more about our patient ratings.

Insurance

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.

Credentials

Appointments

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

Affiliations

Fellow of American Academy of Orthopaedic Surgery
Member of American Association of Hip and Knee Surgeons
Board Member of Eastern Orthopaedic Association

Certification

Board Certified - American Board of Orthopedic Surgery

Awards

Bergen Magazine's Top Doctors 2021
NJ Top Docs Top Doctors 2021

Education

Medical: Temple University School of Medicine, 2007
Internship: North Shore - LIJ Health System, 2008
Residency: North Shore - LIJ Health System, 2012
Fellowship: Hospital for Special Surgery, 2013

State Licensure

Languages

English

For My Patients

Hip Animations

Knee Animations

Directions to The Pavilion

My office is located at The Pavilion, 541 East 71st Street. The main entrance to The Pavilion is on the north side of 71st Street underneath the sky bridge that connects the main hospital to the Belaire Building.

Publications by Dr. Ast

Selected Journal Articles

For all publications, please see the PubMed listing.

Selected Books/Chapters

Ast MP. High Yield Facts in the Hand. First Aid for the Surgery Clerkship- Third Edition. McGraw Hill, 2016.

Ast MP. High Yield Facts in Orthopaedics. First Aid for the Surgery Clerkship- Third Edition. McGraw Hill, 2016.

Ast MP, Bezwada HP. How to Identify and Correct Technical Errors. The Direct Anterior Approach to Hip Reconstruction.SLACK Inc, 2016.

Ast MP, Ranawat AS. Surgical Approaches for THR in Hip Replacement- Editor Lawrence D. Dorr. Future Medicine Ltd,2013.

Ast MP, Ranawat AS. Surgical Approaches for the Hip- Evidence vs. Advertising in World Clinics in Orthopaedics. JPMedical Publishers, 2013.

Goldstein MJ, Ast MP, Silber JS, Anderson DG, Albert TJ. Chapter 82- Cervical Kyphosis. The Cervical Spine: 5th Edition. Lippincott, Williams and Wilkins, 2010.

Ast MP. High Yield Facts in the Hand. First Aid for the Surgery Clerkship- Second Edition. McGraw Hill, 2009.

Selected Presentations

Ast MP, Kiser C, Su E. Early Experience with Handheld Navigation for Direct Anterior THA. Australia Orthopaedic Association Annual Meeting; Adelaide, AUS, October 2017.

Ast MP, Mayman DJ, Della Valle AM, Bostrom MP, Haas SB. Near Miss Medical Errors in Total Joint Arthroplasty. HSS 2014 Holiday Knee Course: New York, NY, December 2014.

Ast MP, Abdel MP, Ruel AV, Lee Y, Lyman S, Westrich GH. Weight Change after Total Hip and Total Knee Replacement: Incidence, Predictors, and Affects on Clinical Outcomes. AAOS 2014: New Orleans, LA.

Ast MP, John TK, Gonzalez Della Valle AM. Fracture of Highly Crosslinked Acetabular Liners: An analysis of cases reported to the United States Food and Drug Administration. AAOS 2014: New Orleans, LA.

Ast MP, Mayman D, Su E, Gonzalez Della Valle A, Bostrom M, Parks M, Haas S. The reduction of implant related errors and waste in total knee arthroplasty using a novel, computer based, e.Label and compatibility system. Eastern Orthopaedic Association; Miami, FL, October 2013.

Banka TR, Ast MP, Fields K, Lyman S, Westrich GH. Pre-operative predictors of postoperative pain after total knee replacement. Eastern Orthopaedic Association; Miami, FL, October 2013.

Lyman S, Ast MP, Abdel MP, Gorab AH, Ruel A, Westrich GH. Weight loss following hip and knee arthroplasty. International Society of Orthopaedic Registries; Stratford-Upon-Avon, England, March 2013.

Ast MP, Mayman D, Su E, Gonzalez Della Valle A, Bostrom M, Parks M, Haas S. The reduction of implant related errors and waste in total knee arthroplasty using a novel, computer based, e. Label and compatibility system. HSS Holiday Total Knee Meeting; New York, December 2012.

Ast MP, Lementowski P. The use of matte finish stems to prevent stem displacement in cemented hemiarthroplasty. NS-LIJDept of Orthopaedic Surgery Alumni Research Day; New York, June 2012.

Ast MP, Roofeh J. Cost Effectiveness and Clinical Outcomes of Patient Specific Instrumentation for Total Knee Replacement. NS-LIJ Dept of Orthopaedic Surgery Alumni Research Day; New York, June 2011.

Research

Current clinical research focuses on pain control after joint replacement surgery as well as the clinical safety and efficacy of hip and knee replacement implants. As Chief Medical Innovation Officer, Dr. Ast works with the HSS Innovation Institute team on new technologies that can improve clinical outcomes, enhance patient experience, and/or lower the cost of care.

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. Ast as of February 09, 2024.

3M - Honoraria
American Academy of Orthopaedic Surgeons (AAOS) - Board or Committee Member
American Association of Hip and Knee Surgeons (AAHKS) - Board or Committee Member
Convey MD - Advisory Board; Ownership Interest
Foundation for Physician Advancement - Committee Member; Honoraria
HS2, LLC - Ownership Interest
HSS ASC Development Network- Ownership Interest
Joint Effort Administrative Services Organization - Ownership Interest
OrthAlign, Inc. - Consultant; Ownership Interest; Royalties
Ospitek- Chief Medical Officer; Ownership Interest
Osso VR - Ownership Interest
Parvizi Surgical Innovation - Ownership Interest
Smith & Nephew - Consultant; Research Support; Speakers' Bureau
Stryker - Consultant; Research Support

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. Ast in the News

Book Online