John G. Kennedy, MD

John G. Kennedy, MD Dr. Kennedy is an orthopaedic foot and ankle surgeon, specializing in sports injuries and cartilage repair at NYU Langone Health.

Dr. Kennedy is an orthopaedic foot and ankle surgeon, specializing in sports injuries and cartilage repair at Hospital for Special Surgery in New York City.

April was an exciting month for us. It was a tremendous honor to carry forward the legacy of Melvin Jahss, the founding ...
04/29/2026

April was an exciting month for us. It was a tremendous honor to carry forward the legacy of Melvin Jahss, the founding Chief of Foot and Ankle Surgery at NYU and a true pioneer who helped define and shape modern foot and ankle surgery as we know it today. His contributions as a clinician, educator, and visionary continue to resonate across our specialty, not only through the countless surgeons he trained, but through the enduring standards of excellence he established. To stand in a role once held by such an influential figure is both humbling and deeply meaningful, and it serves as a constant reminder of the responsibility we have to advance the field he helped build.

We were privileged to host this year’s Melvin Jahss Lecture at NYU Langone Orthopedic Hospital, welcoming Macalus V. Hogan as our distinguished guest speaker. Dr. Hogan delivered an exceptional and forward-looking lecture on the continued evolution and innovation within sports foot and ankle surgery. His perspective, grounded in both academic leadership and clinical excellence, was not only insightful, but also truly inspiring for our residents, fellows, and faculty alike.

On a personal level, it was especially rewarding to reconnect with Dr. Hogan, a former fellow, and to see firsthand the extraordinary impact he has made as a leader in orthopaedic surgery. Watching the next generation grow, lead, and push boundaries is one of the most fulfilling aspects of academic medicine, and moments like these underscore the importance of mentorship and lifelong professional relationships.

The Melvin Jahss Lecture continues to serve as a powerful tribute to a remarkable legacy, one that challenges all of us to strive for excellence in patient care, research, and education, while inspiring the future leaders of our field.

Hogan

04/21/2026

GLP-1 agonists have continued to increase in popularity yet their long term adverse effects are not well understood. Watch our new video on the potential consequences in bone healing for patients on GLP-1 agonists!

I had the pleasure of being part of the discussion featured in Healio with Orthopedics Today on the evolving landscape o...
04/13/2026

I had the pleasure of being part of the discussion featured in Healio with Orthopedics Today on the evolving landscape of ankle cartilage repair. We discussed the shift toward a more personalized, biological driven approach, including the utilization of concentrated bone marrow aspirate, platelet-rich plasma, and scaffold-based techniques, rather than relying on a one-size-fits-all strategy. Our team is the first to use CBMA in talar osteochondral lesions over 20 years ago and it is so satisfying to see how it has now gained universal worldwide acceptance as an OCL therapeutic modality. We are now looking more and more into newer cell based therapies including the role of exosomes and peptides. We also discussed how autograft remains the gold standard for osteochondral lesions of the talus, with newer biologic scaffolds including extracellular matrix cartilage and patient specific cellular therapies continuing to expand available treatment options. Excited to see how these approaches continue to advance joint preservation and improve long-term outcomes for patients!

Check out the article below:
https://www.healio.com/news/orthopedics/20260410/more-treatments-expand-personalized-ankle-cartilage-repair

04/06/2026

Peptides like BPC-157, TB-500, and growth hormone secretagogues are increasingly marketed for recovery and injury healing.

But what does the science actually say?

- Most evidence comes from animal studies
- Human data is extremely limited
- No FDA approval for orthopedic use
- Clinical benefit in musculoskeletal conditions remains unproven

While the biology is interesting, potential does not equal proven clinical outcomes!

As physicians, our goal is to rely on safe, evidence-based treatments.

💬 Curious about regenerative therapies that are supported by evidence? Let us know below.

Proud to support an incredible weekend of youth rugby with Rugby4All 🏉Seeing over 200 young athletes come together, lear...
03/19/2026

Proud to support an incredible weekend of youth rugby with Rugby4All 🏉

Seeing over 200 young athletes come together, learn the game, and create lasting memories is what community sports are all about. The energy and teamwork on display were truly inspiring.

As an orthopedic surgeon, I’m passionate about keeping athletes healthy, active, and doing what they love! It’s amazing to see the sport continue to grow at the youth level.

Looking forward to the upcoming spring season and more moments like this!

Great time at the AAOS Annual Meeting in New Orleans and the NFL Combine. Always a pleasure connecting with former fello...
03/06/2026

Great time at the AAOS Annual Meeting in New Orleans and the NFL Combine. Always a pleasure connecting with former fellows and the OG himself, Dr. Rick Ferkel.

One of the best parts of these meetings is teaching the next generation while continuing to push the field forward in small-scope technology and biologics.

None of this would be possible without an incredible team at NYU Langone Orthopedics, our outstanding fellows, and the continued collaboration with industry partners. Grateful to be part of such a strong community advancing foot & ankle care.

02/19/2026

Concentrated bone marrow aspirate (CBMA) is an advanced orthobiologic that contains growth factors, mesenchymal stem cells, and potent anti-inflammatory mediators such as IRAP.
It is used to augment tendon repair, fracture healing, and cartilage procedures by enhancing the biologic environment at the treatment site.
Published evidence shows that CBMA works not by by activating local signaling pathways and modulating inflammation, leading to faster and better healing.
As always, appropriate indication and technique are key.

Sunday was about the game, but it was also about perseverance, resilience, and the people who make the journey worth it....
02/10/2026

Sunday was about the game, but it was also about perseverance, resilience, and the people who make the journey worth it. Forever grateful for quality time with my son and nephew, and the athletes who remind us that with hard work, faith and family, anything is possible.

02/03/2026

Platelet-rich plasma (PRP) is a biologic treatment derived from a patient’s own blood and designed to support healing by reducing inflammation and promoting tissue repair.

When appropriately prepared and correctly applied, PRP can play a valuable role in treating tendon pathology, cartilage injury, bone healing challenges, and select muscle injuries.

Not all PRP is the same which is why patient selection, preparation method, and evidence-based use matter.

01/29/2026

A glimpse into this week’s cases in the operating room 💪🏻
From AOT to fracture fixation and ligament repair, each procedure is tailored to the patient and pathology. Always focused on precision and biologic augmentation. 💥

01/22/2026

A well-executed Scarf Osteotomy provides a powerful and stable correction for hallux valgus (or bunion). Our rotational modification improves cortical engagement, preserves vascularity and is supported by the largest US series and multiple peer-reviewed studies.

Address

171 Delancey , Suite 259
New York, NY
10002

Alerts

Be the first to know and let us send you an email when John G. Kennedy, MD posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Practice

Send a message to John G. Kennedy, MD:

Featured

Share

Category