Pediatric Orthopedics

If your child has a musculoskeletal condition or injury, you will be reassured to know that Emerson Hospital is home to the region’s only fellowship-trained pediatric orthopedic surgeon. This means you have access to advanced expertise close to home for diagnosing and treating a wide range of childhood orthopedic conditions.
For more information or to schedule an appointment, call us at 978-369-5391.
Conditions We Treat
Our pediatric orthopedic specialist cares for children from birth through young adulthood, treating conditions such as:
- Fractures – Children’s growing bones heal differently than adult bones.
- Athletic injuries – Including overuse syndromes common in young athletes.
- Scoliosis – A side-to-side curvature of the spine.
- Back pain and spondylosis – A spinal stress fracture often seen in active children.
- Foot and ankle injuries and deformities – Affecting mobility and comfort.
- Knee pain and injuries – Including ACL ruptures.
- Hand and finger injuries – From everyday activities and sports.
Our Services
We offer a full range of specialized services, including:
- Treatment of complex fractures in the upper and lower extremities.
- Management of athletic injuries and overuse syndromes.
- Expert care for adolescent scoliosis and spine conditions.
- Child-focused orthopedic care designed for growing bodies.
The Benefits of a Pediatric Specialist
Why Choose a Pediatric Orthopedic Specialist?
Children’s bones, joints, and muscles are different from adults’, and so are their injuries and recoveries. Our pediatric orthopedic surgeon is trained to examine and treat children in a way that helps them feel relaxed and comfortable. They also understand how to communicate with concerned parents and make informed diagnoses for younger children who may not be able to fully express their symptoms.
Our pediatric specialist collaborates with Emerson Hospital’s orthopedic rehabilitation team, which includes expert physical and occupational therapists who specialize in treating children and young athletes. Many of our therapists have additional training in sport-specific rehabilitation, helping young dancers, gymnasts, weightlifters, baseball and softball players, and others recover safely and return to activity stronger.
Safe, Child-Friendly Imaging
When X-rays are needed, we follow the national “Image Gently” guidelines, ensuring the lowest possible radiation dose for children. We also limit the number of images taken over the course of treatment to prioritize safety.
Support for Your Child and Family
At Emerson Hospital, we recognize that medical visits can feel overwhelming for children. That is why our Pediatric Intervention Team (PIT) is available to support families in the emergency department, operating room, and pediatric floor. They help children feel at ease before exams, during procedures, and throughout their hospital stay.
Pediatric Orthopedic Specialist

John Cahoy MD, PhD
Orthopedic Surgery, Orthopedics, Pediatric Orthopedics, Scoliosis Accepting new patients
John Cahoy
MD, PhD
Orthopedic Surgery, Orthopedics, Pediatric Orthopedics, Scoliosis
Accepting new patients
Our Locations
Orthopedic Affiliates Concord
54 Baker Avenue Extension
Suite 200
Concord, MA 01742Orthopedic Affiliates Westford
133 Littleton Road
Suite 104
Westford, MA 01886