What is Apophysitis?

By Dominic Worsowicz DPT

What is Apophysitis Injury?

The quick answer, apophysitis is an inflammation or injury where a tendon attaches to a growth plate. The most common occurance of apophysitis is in the knee. It appears as a large bump on the front of the knee. It is most relevant in growing children and adolescents, but why is it so common in young athletes?

  • Children go through growth spurts where the bones grow quickly. Sometimes there has not been time for the muscles to grow and adapt. Therefore, children and adolescents have shortened muscles, which increases the stress at the muscle’s respective attachment site.
  • In these age groups, the children’s bones are not fully developed and not as strong. Bones are not equipped to handle the tendon’s repeated pulling on the bone with large amounts of force caused by activities like running, jumping, or throwing.
Image of injury to a young athlete.

Child athletic injuries should be closely monitored to avoid apophysitis.

Causes of Apophysitis

Apophysitis can happen from repetitive stress to the area (running, jumping, throwing), but it can also be caused by an acute injury (fall, impact).

Apophysitis Symptoms

  • Pain, swelling, and tenderness around the area where the tendon attaches to a growth plate.
  • Increased pain with activity and decreased pain with rest.
  • Occasionally you may see bump or feel pain in the area.

Most common types of Apophysitis

Osgood's Schlatter Disease

Osgood-Schlatter Disease



To be diagnosed with apophysitis, you would have to see a Sports Medicine Physician. The physician would perform a physical examination and order an x-ray to help rule in or out apophysitis or other diagnoses.

Prevention of Apophysitis 

Things you or your child can do to prevent apophysitis are paying attention to your child’s symptoms. If the child or adolescent is experiencing pain, let the child rest until the pain diminishes.

Another important thing you can do is make sure the child or adolescent maintains and continues to improve their flexibility as they are growing. This will decrease stress on the areas of growth plates and help decrease the range of motion deficiencies that can cause injuries down the line.

The third thing you can do is not letting your children specialize in a sport until later in life, like high school and college. Letting the child participate in various sports instead of one sport year-round helps decrease the child’s time in that aggravating activity. Also, playing multiple sports increases the variety of physical skills they learn and helps them become a better all-around athlete.

How Do You Get Rid of Apophysitis?

Injured athletes affected with apophysitis should utilize the RICE Protocol:

  • Rest.
  • Ice.
  • Compression.
  • Elevation.

Other Treatments

Other forms of treatment may include the following:

  • NSAID’s (Non-steroidal anti-inflammatory) medication to control pain and reduce inflammation.
  • Physical Therapy: Physical therapy can be essential for the recovery from apophysitis. As mentioned above, one of the issues that can occur is the bone grows too quickly for the muscle, and the muscle is short and tighter now. A physical therapist can help the child or adolescent stretch properly to improve flexibility and decrease tissue restrictions around the area. Physical therapy can also address strength deficits as the surrounding musculature can be too weak, and the inflamed tendon is taking the brunt of the work. Exercises learned can also help strengthen the affected musculature. It may not be strong enough to take on the demands of the activity the child or adolescent enjoys participating in.
  • Medical equipment: The doctor may prescribe or recommend a brace, strap, or shoe that either offers more support to that area or helps transfer the stress of jumping, running, or throwing to a different area better equipped for those stresses.

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To schedule physical therapy at one of the 12 JOI Rehab Centers, please call 904-858-7045.

JOI and JOI Rehab

JOI Physicians continue to offer online new patient appointments. This is another option to make it more convenient to make new patient appointments with less phone hold times. Follow the link below to select your JOI MD and schedule online.

You can still call 904-JOI-2000 to make new patient JOI Physician Appointments if that is your preference.

To make appointments with JOI Rehab, please call 904-858-7045.

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Book An Appointment with a JOI PhysicianBy: Dominic Worsowicz DPT

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