Growth Plate Injuries: Why Kids Need Specialized Care

When a child gets hurt during play or sports, a parent’s first instinct is to hope it is nothing serious. In many cases, that hope is justified. But there is a category of injury in growing children that looks like a simple sprain or minor fracture on the outside and turns out to be something that deserves considerably more careful attention: a growth plate injury. At POBAR, our pediatric orthopedic specialists see these injuries regularly, and the most important thing parents can understand is that a child’s skeleton is fundamentally different from an adult’s, which means these injuries require a different kind of evaluation and care. If your child has experienced an injury near a joint and something does not seem quite right, schedule an evaluation today.

Understanding what growth plates are and why they matter is the foundation of understanding why these injuries are taken so seriously in pediatric orthopedic care.

What Growth Plates Are and Why They Matter

Growth plates are areas of soft, developing cartilage located near the ends of the long bones in a child’s arms and legs. They are sometimes called the physis, and they are the regions where bone growth actually occurs. As a child grows, the growth plates gradually produce new bone tissue, lengthening the bones over time. This process continues until the child reaches skeletal maturity, which typically happens around age 14 to 16 in girls and 16 to 18 in boys. Once growth is complete, the growth plates harden and close, replaced by solid bone.

Until that closure happens, the growth plates are the structurally weakest points in a child’s skeleton. In adults, ligaments and tendons are often the weakest link when a joint is stressed, which is why adults tend to sprain. In children, the growth plate is weaker than the surrounding ligaments, which means that forces that would cause a sprain in an adult may instead cause a fracture through the growth plate in a child. This is one of the most important differences between pediatric and adult orthopedics, and it is the reason that an injury that appears to be a simple sprain in a child sometimes warrants a closer look.

Why Growth Plate Injuries Are Different From Other Fractures

Growth plate injuries are classified using a system that describes how much of the growth plate and surrounding bone is involved. The type of injury matters because it directly affects the treatment approach and the likelihood of complications. Minor injuries involving only the growth plate itself often heal well with appropriate immobilization. More complex injuries that extend into the joint or the bone shaft may require surgical treatment to ensure proper alignment and reduce the risk of growth problems afterward.

The most significant concern with growth plate injuries that are not properly recognized and treated is their potential to affect how the bone grows going forward. An untreated or poorly treated growth plate injury can lead to a bone growing at an abnormal angle, or one limb growing shorter than the other. These are not inevitable outcomes, and the majority of growth plate injuries heal without lasting problems when they are identified and managed appropriately. But those good outcomes depend on getting the right evaluation in the first place.

Why These Injuries Can Be Easy to Miss

One of the challenges with growth plate injuries is that they do not always look like dramatic fractures. A child who has injured their growth plate may have swelling and tenderness around the affected area but may still be able to move the limb. On a standard X-ray, some growth plate injuries are not immediately obvious because the cartilage of the growth plate does not show up on X-ray the way bone does. What appears as a “normal” X-ray finding in an adult may represent an injury through the cartilage in a child.

This is precisely why specialized pediatric orthopedic evaluation matters. Physicians trained in pediatric orthopedics know where growth plates are located, what their normal appearance should be at different stages of development, and what subtle signs on imaging or examination suggest an injury has occurred. They also know when additional imaging may be needed to clarify what standard X-rays cannot fully show.

Common Locations and What Parents Might Notice

Growth plate injuries most commonly occur at the wrist, ankle, and knee, though they can happen at any joint where a growth plate is present. After an injury to one of these areas, parents should pay attention to whether the child is tender directly over the bony prominence of the joint rather than over the ligament on the side of the joint. Tenderness over the growth plate area, significant swelling, or a child who is unwilling to use the limb normally after an injury are all signs worth having assessed by a pediatric orthopedic specialist.

It is also worth noting that overuse injuries can affect growth plates as well, not just acute traumatic incidents. In young athletes who are training intensively, repetitive stress on a growth plate can cause pain and inflammation that, if not recognized and managed, can lead to more significant injury over time. Any child who has persistent pain around a joint during or after sports activity should be evaluated rather than encouraged to push through it.

Personalized, Expert Care at POBAR

At POBAR in Brandon, every child is seen as an individual with a growing body that deserves evaluation from specialists who understand its unique structure. Our pediatric orthopedic team combines thorough clinical assessment with appropriate imaging to ensure that growth plate injuries are identified accurately and treated in a way that protects both the injured area and the child’s growth potential. If your child has had a recent injury and you are not fully certain it has been evaluated with growth plates in mind, we are here to provide that peace of mind.

Frequently Asked Questions

How do I know if my child has a growth plate injury rather than a sprain?
Because growth plates are weaker than ligaments in children, what feels like a sprain may actually involve the growth plate, and tenderness directly over the bony area of a joint rather than over the soft tissue on the side is one sign worth having professionally evaluated. A pediatric orthopedic specialist can examine the injury and determine whether imaging or further assessment is needed to rule out growth plate involvement.

Can a growth plate injury affect my child’s bone growth?
When properly recognized and treated, the majority of growth plate injuries heal without affecting future bone growth, but injuries that are missed or inadequately managed carry a risk of causing uneven growth or angular changes in the affected bone over time. This is one of the primary reasons that growth plate injuries in children benefit from evaluation by a specialist with pediatric orthopedic training.

Do growth plate injuries always require surgery?
No, many growth plate injuries heal well with casting or splinting and do not require surgery. The need for surgical intervention depends on the type and severity of the injury, whether the bone fragments are well-aligned, and whether the joint surface is involved, all of which are determined through examination and imaging.

At what age do growth plates close?
Growth plates typically close when a child reaches skeletal maturity, which occurs around age 14 to 16 in girls and 16 to 18 in boys, though there is natural variation between individuals. Once the growth plates have fully closed, they are replaced by solid bone and no longer represent a point of vulnerability in the skeleton.

Should I take my child to a pediatric orthopedic specialist or a general urgent care?
For any joint injury in a growing child that involves significant swelling, the inability to bear weight, or tenderness directly over a bony area, evaluation by a pediatric orthopedic specialist is the most appropriate path, as general urgent care providers may not have the pediatric-specific training to recognize subtle growth plate injuries. POBAR offers timely evaluations and can provide the specialized assessment your child’s developing skeleton requires.