About Us
Dr. Marx has treated thousands of knee and shoulder injuries. He does arthroscopic and open procedures for knee and shoulder problems as well as knee and shoulder joint replacement surgery. Dr. Marx also performs complex and revision surgical cases.
Anterior Cruciate Ligament Reconstruction
Using arthroscopic techniques, Dr. Marx reconstructs the ACL (Anterior Cruciate Ligament) of the knee. These tears are often caused by injuries sustained in sports. Dr. Marx uses all techniques and graft sources, including patellar tendon, hamstrings and transplant. He also performs revision surgery for previous failed ACL reconstruction.
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Back to topMultiligament Reconstruction of the Knee
In some cases, more than one ligament in the knee requires reconstructive surgery (i.e.: ACL, PCL, MCL, and / or LCL / posterolateral corner). Dr. Marx is well known for his expertise in this area having published and lectured extensively on this topic.
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Back to topShoulder Surgery for Dislocation or Trauma
This includes surgery to stabilize shoulders following dislocation or fractures after trauma. Dr. Marx specializes in revision surgery for failed dislocation repairs.
Back to topRotator Cuff Repair
Dr. Marx performs rotator cuff repair surgery arthroscopically for small and large tears to eliminate pain and improve strength in injured shoulders. The arthroscopic approach involves four small incisions each measuring less than a centimeter.
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Back to topArthroscopy and Complex Knee Surgery
Dr. Marx performs knee arthroscopy with meniscus surgery and meniscus transplantation. Dr. Marx repairs or removes torn sections of the meniscus arthroscopically. He also performs osteotomy (leg realignment), transplants and complex knee-revision surgery.
Click here for more information Back to topShoulder Replacement
This procedure is performed for arthritic joints when pain and limitation of movement prevent normal function. Joint replacement surgery can allow patients who are limited by their arthritis to return to a more active and normal lifestyle.
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Back to topKnee Replacement
This procedure is performed for arthritic joints when pain and limitation of movement prevent normal function. Joint replacement surgery can allow patients who are limited by their arthritis to return to a more active and normal lifestyle.
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Back to topPediatric Knee Surgery
Dr. Marx has special expertise in pediatric and adolescent knee problems. He performs physeal-sparing ACL reconstruction for skeletally immature (growing) patients to avoid injury to the growth plates. He also has extensive experience treating discoid meniscus problems in children, as well as Osteochondritis Dissecans (OCD) and performs a variety of techniques to address these lesions.
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Back to topEducation & Certification
Dr. Marx is certified by the American Board of Orthopedic Surgery and the Royal College of Surgeons of Canada. Dr. Marx received his MD from McGill University, his MSc in Clinical Epidemiology from the University of Toronto, and his BSc in Biology from the Université de Montréal. He completed his residency at the University of Toronto and obtained a fellowship in Sports Medicine/Shoulder and Knee Surgery from the Hospital for Special Surgery in New York.
Back to topPositions & Affiliations
In addition to his position as attending surgeon at the Hospital for Special Surgery, Dr. Marx is Professor of Orthopedic Surgery and Public Health at Weill Medical College of Cornell University. He is also Director of the Foster Center for Clinical Outcome Research at the Hospital for Special Surgery.
Dr. Marx currently serves on the board of directors, and chairs the Scientific Advisory Committee, of the International Society of Arthroscopy, Knee Surgery and Orthopedic Sports Medicine (ISAKOS). Comprised of surgeons from over 70 countries worldwide, ISAKOS develops, supports and promotes charitable, scientific and literary works regarding arthroscopy, knee surgery and orthopedic sports medicine.
Back to topInvited Lecturer
Dr. Marx has been invited to lecture in Austria, Brazil, Canada, Greece, Israel, Italy, Portugal, Japan, Norway, Switzerland and New Zealand, where he has shared his knowledge on advanced orthopedic topics with hundreds of physicians and health care professionals. He has been invited to lecture as visiting professor of orthopedic surgery at many academic institutions, including Harvard University and The Mayo Clinic.
Back to topInternational Practice
Dr. Marx has had visiting surgeons from around the world observe his work in the operating room, including from Argentina, Belgium, Brazil, Canada, China, France, Germany, Greece, India, Ireland, Israel, Italy, Japan, Lithuania, Poland, Spain, and Turkey. He also treats patients from many countries who travel to New York for their surgery. Dr. Marx enjoys speaking French with his international patients and colleagues.
Back to topPublications
Dr. Marx has published a textbook on bone tumors and has also written book chapters on knee and shoulder surgery. He has published more than 100 peer-reviewed articles in leading orthopedic and research journals. Dr. Marx received the 2003 O'Donoghue Sports Injury Research Award presented by the American Orthopedic Society for Sports Medicine for a study of determinants of knee injury following ACL (Anterior Cruciate Ligament) tear.
Back to topResearch Grants
Dr. Marx has received many peer-reviewed research grants. He was awarded research funding from the ACL Study Group (an international nonprofit organization dedicated to the study of the anterior cruciate ligament) and the MacArthur Foundation to study Cartilage Regeneration and Repair. Additionally, Dr. Marx served a five year term reviewing grants from other surgeons for the Orthopedic Research and Education Foundation (OREF), the nation's largest non-profit orthopedic research granting agency. He receives funding from the NIH for clinical studies on knee arthroscopy for meniscal tears as well as for ACL surgery. Dr. Marx was awarded a four million dollar - five year grant as a lead investigator for a study of outcomes after joint replacement surgery, funded by the United States government (Agency for Healthcare Research and Quality).
Back to top"As an athlete, experiencing tremendous pain in both shoulders, was not something anyone would want. Diagnosed with "no cartilage" in both shoulders, I was faced with continued pain or surgery: shoulder replacement surgery to be exact. Scary outlook, but needed, as it was affecting my daily routines. It was preventing me from doing things I really loved.......playing catch with my grandson, golfing with my 2 boys, picking up groceries, even sleeping."
"Dr. Marx is a god sent. He and his staff told me what to expect from day one. Literature was given to me about all that I might encounter. I probably could have gotten this material from other surgeons, but I would not get his calmness, his assurance, his warmth and his exteme professionalism. Calls are answered almost immediately from him or his physician assistants."
"Three and a half months after my other shoulder surgery I am back at the gym working out with guidelines and looking forward to playing golf and picking up my grand kids. My grand kids think the shoulder scars are cool!!"
"I have also recommended Dr. Marx to anyone who needed surgery or was having a problem with their knees or shoulders."
Thank you Dr. Marx !!
~ Mark Homowitz
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