With digital imaging and specialized orthopedic tools at hand, our orthopedic team is uniquely trained to accurately diagnose and treat broken bones, dislocations, and other sudden musculoskeletal injuries that require immediate, urgent care.
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Matthew B. Cantlon, MD, is a board-certified orthopedic surgeon and a fellowship-trained specialist in the diagnosis and treatment of hand and upper extremity conditions and injuries. His expertise includes treatment of arthritis of the hand, wrist and elbow, fractures of the hand and upper extremity. In addition, he treats nerve compression syndromes of the upper extremity including carpal tunnel and cubital tunnel syndromes. He is trained in the treatment of masses such as ganglion cysts, and rehabilitation of sports injuries of the hand and upper extremity. Dr. Cantlon has extensive training in the most current surgical techniques including the breakthrough Wide-Awake hand surgery. He is surgically skilled in microsurgical nerve reconstruction, arthroscopy of the wrist and elbow, tendon and ligament repairs/reconstructions, and hand, wrist and elbow joint replacement.
A native of New Canaan, CT, Dr. Cantlon has served as a hand and upper extremity physician to the Alvin Ailey American Dance Theater group, the Long Island University and New York University Athletics teams, and the New York Public School Athletic League (PSAL) High School Football.
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Dr. Canton is one of the best doctors I have ever had! Definitely recommend for any hand/arm problem. Pleasure to deal with … (5 Star Review on Google from C.C.)
Best doctor ever! Dr Cantlon fit me in same day and despite the fact that I knew he was busy, I did not feel one bit rushed. He listened to me intently, explained everything in detail and even went through each xray one by one. I couldn’t recommend him more highly!(5 Star Review on Healthgrades)
We cannot thank Dr.Cantlon enough for his care and expertise in helping our young son recover from a broken arm. From the moment he came to the ER to set the bones, to the 3 cast changes and the appointments along the way he was reassuring, attentive, calm and we felt like we were in the best hands. The ONS front desk staff, nurses and Xray tech were also so kind each and every time ….even when my son would cry from fear. I highly recommend ONS and Dr.Cantlon. We are so grateful our son healed so well and it back to running around! (5 Star Review on Google from C. G.)
A careful, thoughtful doctor, whose excellent treatment skills are matched by his empathetic manner. Though still young, he possesses the clinical knowledge to treat the body, and the emotional knowledge to treat the patient as a whole. (5 Star Review on Google)
Today was my 1st visit to see Dr. Cantlon and he has such a great bedside manor, he’s gentle soft spoken, and easy on the eye lol. In all seriousness I really appreciate him and his staff taking such great care of me, and let me add no wait time which is very important to those of us who work. (5 Star Review on Healthgrades from D.M.)
Dr. Cantlon was terrific. He spent time with me, asking me questions, clarifying info and asking me if I understood. Got additional Xrays (tech was great too) which showed no break. So I was happy. Very happy.
Hopefully I don’t have to go back, but Greenwich ONS (Orthopaedic and Neurosurgery Specialists), the staff, and Dr. Cantlon (Hand and Upper Extremity Surgeon) were great. Highly recommended. (Five star review on Google)
Dr. Cantlon is very smart and is so nice. I would definitely go back and recommend. (Patient Survey)
Dr. Cantlon has been great. During our Greenwich Hospital ER visit for a pediatric broken thumb and the ONS follow-up visit, his efficiency, clarity, and bedside manner he had for me and my 11 year old was excellent! (Patient Survey)
Chief Resident Teacher of the Year – Hospital for Joint Diseases Executive Chief Resident – Hospital for Joint Diseases AOA Resident Leader – Hospital for Joint Diseases Gold Humanism Honor Society, Columbia University, College of Physicians & Surgeons
TEAM COVERAGE EXPERIENCE
Alvin Ailey American Dance Theater Long Island University Athletics New York University Athletics Public School Athletic League (PSAL) High School Football
New York State License Physician Assistant
National Commission on Certification of Physician Assistants: PANCE
American Heart Association: Basic Life Support for Health Care Providers
American Heart Association: Advanced Cardiovascular Life Support for Health Care Providers
Dr. Kowalsky is a board-certified orthopedic surgeon with expertise in surgical and nonsurgical management of sports injury of the shoulder, elbow and knee, as well as complex shoulder and elbow conditions, including degenerative disease, trauma, and revision surgery. He has a particular interest in the management of shoulder and elbow arthritis, instability, ligament and tendon injuries, knee ligament injury and cartilage disorders. Dr. Kowalsky has authored original research manuscripts, reviewed articles, and textbook chapters focusing on AC joint reconstruction, rotator cuff repair, and shoulder replacement. He currently serves as a reviewer for the Journal of the American Academy of Orthopaedic Surgeons, Journal of Shoulder andElbow Surgeryand the American Journal of Sports Medicine.
Dr. Kowalsky has cared for college and professional athletes at every level of competition. He has provided sports medicine coverage for the Tournament of Champions Squash Tournament and the United States Open Tennis Championship. As a sports medicine fellow, he was an assistant team physician for the New York Jets and the New York Islanders. He previously served as orthopedic surgery consultant for New York City Public School Athletic League Rugby and Play Rugby USA, and as the Medical Director of the New York Rugby Club Annual New York 7s Tournament. He currently serves as team physician for the White Plains Rugby Football Club, Iona College Rugby Football Club, and the Greenwich High School Rugby Team. Dr. Kowalsky is a team physician for the CT Whale of the National Women’s Hockey League, and of the USA Rugby National Team. He currently serves as medical director for the Northeast Academy national development rugby program.
Mark Vitale, MD, MPH, is a board-certified orthopedic surgeon and a fellowship-trained specialist in the diagnosis and treatment of hand, wrist and elbow conditions and injuries. He holds a subspecialty certificate of added qualifications in surgery of the hand and upper extremity. Dr. Vitale’s expertise includes treatment of arthritis of the hand, wrist and elbow, fractures of the upper extremity, rehabilitation of sports injuries of the hand, wrist and elbow, arthroscopic treatment of wrist and elbow disorders, nerve compression syndromes of the upper extremity including carpal tunnel and cubital tunnel syndrome, microsurgical reconstruction of nerve injuries, treatment of masses in the hand such as ganglion cysts, and upper extremity tendon repair and reconstruction. In addition, he cares for hand differences and disabilities seen in infancy and adolescence as well as pediatric hand, wrist and elbow fractures. Dr. Vitale has been designated by Endo Pharmaceuticals as an ‘experienced injector’ of Xiaflex® for Dupuytren’s Disease. He is able to treat many patients with Dupuytren’s contractures non-operatively with an injectable enzyme which breaks down the cords that cause fingers to bend into the palm.
Mark Yakavonis, MD, MMS, is a fellowship-trained orthopedic surgeon who specializes in the diagnosis and treatment of foot and ankle conditions. His expertise includes sports injuries to the foot and ankle, foot and ankle fractures, syndesmotic and cartilage injuries, Achilles tendon injuries and tendinitis, foot and ankle arthritis, and minimally invasive and arthroscopic surgical techniques. Dr. Yakavonis is experienced in ankle joint replacement surgery and neuromuscular disease.
Dr. Yakavonis graduated with a Bachelor of the Arts degree from Bowdoin College and earned a Master degree in Medical Science at Boston University. He completed his doctorate in medicine at New York Medical College, where he was elected into the Alpha Omega Alpha Medical Honor Society. Further, Dr. Yakavonis completed his residency training in orthopaedic surgery at Boston University Medical Center. While there, he received the Resident Research Award for his research into a novel operative technique for reducing ankle syndesmosis (high ankle sprain). He then completed fellowship training in foot and ankle surgery at the Harvard – Massachusetts General Hospital program. During fellowship, Dr. Yakavonis was awarded a national research grant from the Arthroscopy Association of North America.