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Dr. Kennedy is a highly trained and experienced orthopedic surgeon specializing in the treatment of various injuries and conditions affecting the foot and ankle.

  • Nano Arthroscopy

    Nano arthroscopy is a type of arthroscopic technique performed with the help of an advanced imaging system called a NanoScope™.

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  • Shockwave Therapy

    Shockwave therapy is a non-invasive method that uses pressure waves to treat various musculoskeletal conditions.

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  • Regenerative Musculoskeletal Therapies

    Platelet Rich Plasma (PRP)
    Concentrated Bone Marrow Aspirate (CBMA)
    Hyaluronic Acid (HA)
    Stem Cell Treatments
    Fat Cells (Lipogems)

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  • OATS procedure

    OATS of the ankle is a surgical procedure to treat Osteochondral Lesions of the Talus (OCL) or Osteochondritis Dissecans (OCD).

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  • Foot & Ankle Arthroscopy

    Arthroscopy is a minimally invasive operation in a joint which is done by ‘keyhole.' A camera is inserted into the joint to look inside while small instruments.

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John G Kennedy MD
  • AWARDS
  • Royal College of Surgeons of England
  • Wounded Warrier Project
  • NYC Langone HEalth

John G. Kennedy MD, Mch, MMSc, FFSEM, FRCS (Ortho) john G Kennedy

Dr. Kennedy is a world renowned Foot and Ankle surgeon, and a leading expert in cartilage injuries. He co-founded the ICCRA, which has since set the gold standard in treatment alogorithms for ankle cartilage surgery. His interests include regenerative medicine and minimally invasive Nano-arthroscopy. Dr. Kennedy was the first surgeon to perform in-office Nano-arthroscopy. Currently, he is the chief of the Division of Foot and Ankle Surgery and Director of the Foot and Ankle Center at NYU Langone Department of Orthopedic Surgery. Dr. Kennedy continues to train surgeons from around the world and his research team has published over 250 peer-reviewed articles and presented over 2000 times around the globe.

Stories From Our Patients

  • My knee has been feeling great and I am more athletic than I have ever been in the past. I am happy everything went well with the surgery because if it wasn't for Dr. Kennedy, I would probably be incapable of walking without pain.

    - Joseph

  • I want to thank Dr. John and the whole staff at NYU! Because of the shockwave therapy not only was I able to run the NYC marathon, but I PR'ed by 41 minutes from my time last year!! It was an amazing day and I'm grateful to Dr. Kennedy, Jeremie and the whole team!!

    - Lindsey

  • I have been an athlete throughout my entire life and at the age of twenty-six, I was suffering from significant knee, ankle, and low back pain that simple NSAID's, ice, and rest could no longer help me with. I made an appointment with Dr. Kennedy this past November looking to find the root cause of my pain, and he and his team did not disappoint.

    - Joseph

  • Before I saw Dr. John Kennedy I had suffered years of ankle pain after 2 surgeries on my OCD lesions that were unsuccessful. As a dancer, choreographer and a very athletic person, this was a challenging time for me. I could not do my work as a choreographer and I could hardly walk 5 blocks in NYC without stabbing pain at every step.

    - laya

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Minimally Invasive Surgical Techniques

  • Foot & Ankle Arthroscopy

    Foot & Ankle Arthroscopy

    Arthroscopy is a minimally invasive operation in a joint which is done by ‘keyhole.'

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  • Toe Joint Arthroscopy

    Toe Joint Arthroscopy

    Toe joint arthroscopy is a minimally invasive procedure to treat conditions of the joints in your toe.

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  • Tendoscopy

    Tendoscopy

    Tendoscopy is a procedure to see inside of a tendon sheath- very similarly to arthroscopy.

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  • Knee Arthroscopy

    Knee Arthroscopy

    Knee arthroscopy is a common surgical procedure performed using an arthroscope...

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Dr. Kennedy In the Media

  • Dr Kennedy In the Media Video

    Classification, Treatment & Biological Enhancement of Osteochondral Lesions in the Ankle

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  • Dr Kennedy In the Media Video

    Dr. Kennedy discusses the benefits of Needle Arthroscopy using the Nanoscope

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  • Dr Kennedy In the Media Video

    Dr. Kennedy's Approach to Orthopedic Surgery

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  • Dr Kennedy In the Media Video

    Return to sport post ankle injuries Osteochondral autograft transfer system technique

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Practice Expertise

  • Osteochondral Lesions

    Osteochondral Lesions

    Depending on the size and characteristics of your Osterochondral lesion, we have two different treatment options:

    • Reparative Treatment – Bone Marrow Stimulation (Stem Cell Therapies)
    • Replacement Treatment – Autologous Osteochondral Transplantation (OATS)
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  • Posterior Tibial Tendon Insufficiency

    Posterior Tibial Tendon Insufficiency

    The posterior tibial tendon is responsible for facilitating for patient’s to get up on their toes. It runs from the back of the calf around the inside of the ankle to the arch of the foot.

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  • Achilles Tendonitis/Tendonosis/Repair

    Achilles Tendonitis/Tendonosis/Repair

    Achilles tendinitis is the inflammation and irritation to the Achilles tendon, and occasionally the Achilles tendon sheath. The Achilles tendon is one of the strongest tendons in the body and is responsible for propelling us forward every step we take.

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  • Ankle Instability/Sprains/Tears

    Ankle Instability/Sprains/Tears

    The joints of the ankle are held in place and stabilized by strong bands of tissue called ligaments. Ankle instability is a chronic condition characterized by a recurrent slipping of the outer side of the ankle.

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  • Posterior Tibial Tendon Insufficiency

    Peroneal Tendon Insufficieny/Tendonosis

    This condition is often seen in patients with ankle instability but can present at any time with pain over the lateral or outer aspect of the leg associated with a snapping sensation.

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  • Hallux Rigidus/Hallux Valgus

    Hallux Rigidus/Hallux Valgus

    Hallux Rigidus is a form of degenerative arthritis affecting the big toe joint where the big toe (hallux) attaches to the foot. 1st MTP joint stiffness is common in many athletes as well as in the general population.

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Meet our Fellows
  • Christopher Murawki, MD

    Christopher Murawki, MD Orthopedic Surgery Resident, University of Pittsburgh Medical Center

  • Youichi Yasui, MD

    Youichi Yasui, MD Professor of Orthopedic Surgery, Teikyo University

  • Nialll Smyth, MD

    Nialll Smyth, MDOrthopedic Surgeon, Cleveland Clinic

  • Ian Savage-Elliot, MD

    Ian Savage-Elliot, MD Orthopedic Surgery Resident, Tulane University

  • Keir Ross, MD

    Keir Ross, MDOrthopedic Surgery Resident, NYU School of Medicine

  • Charles P. Hannon, MD, MBA

    Charles P. Hannon, MD, MBA Assistant Professor, Orthopedic Surgery, Washington University in St. Louis

  • Andrew Ross DO

    Andrew Ross DOOrthopedic Surgery Resident, Hofstra Northwell School of Medicine

  • Robin Megill, MD

    Robin Megill, MD Professor of Orthopedic Surgery, Kyoto University

  • Lucas Myerson, MD

    Lucas Myerson, MDOrthopedic Surgery Resident, University of Pennsylvania Health System

  • Max Coale, MD

    Max Coale, MDOrthopedic Surgery Resident, University of Washington

  • Rebecca Irwin, PhD

    Rebecca Irwin, PhDPostdoctoral Associate, Cornell University College of Veterinary Medicine

  • Arianna Gianakos

    Arianna GianakosFoot & Ankle Orthopedic Surgery Fellow, Harvard-Massachusetts General Hospital

    John Pinski, MD

    John Pinski, MDPediatric Orthopedic Surgeon, Tufts University Medical Center

  • Eoghan Hurley MB/BCh/BAO, MCh

    Eoghan Hurley MB/BCh/BAO, MChOrthopaedicSenior House Officer (SHO), Mater Misericordiae University Hospital

    Sean Flynn MB/BCh/BAO, MCh

    Sean Flynn MB/BCh/BAO, MChOrthopaedic Specialist Registrar (SpR), University Hospital Waterford

  • Microfracture

    Bone Marrow Stimulation

    This procedure is indicated for smaller lesions and can be done arthroscopically. Multiple holes are made in the exposed bone and they allow bone marrow stem cells.

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  • Autologous Osteochondral Transplantation

    Autologous Osteochondral Transplantation (OATS)

    This procedure is an osteochondral replacement technique by inserting a cylindrical graft and indicated for larger lesions or large cystic lesions.

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Follow Dr. Kennedy on Social Media
  • YouTube

    Biological Enhancement in the Treatment of Osteochondral Lesions of the Talus.

  • Instagram

    Two years ago, Bobby came into our office to repair his ruptured.