Sinding-Larsen Johansson Syndrome

Children are prone to a selection of painful growth related lower limb conditions, commonly referred to as ‘growing pains’ and one of these is Sinding-Larsen Johansson Syndrome. Sinding-Larsen Johansson syndrome shows up as knee pain in children and is one of the paediatric podiatry conditions our Brisbane and Mount Isa podiatrists are trained to identify and treat. 

 

Between the ages of about 10-14 years old, children can develop a specific type of knee pain called Sinding-Larsen Johansson syndrome. The condition occurs during these ages because 10-14 years is the typical range at which the patella (kneecap) and tibial (shin) growth plates are rapidly developing. 

 

While the growth plates of the patella bone are developing, the patella bone is prone to injury from excessive force from the patella tendon pulling on the growth plate. This can happen due to a rapid growth spurt or high activity levels e.g. playing school sports.

child knee pain singding larsen johansson

What are the symptoms of Sinding-Larsen Johansson Syndrome?

If your child has Sinding-Larsen Johansson Syndrome, they will experience pain on their kneecap, where it connects into the patella tendon right at the bottom of the knee cap. Symptoms commonly include:

  • Stabbing, throbbing or aching pain around the knee, especially directly on the bottom of the kneecap
  • Pain in one or both knees
  • An uneven or limping gait
  • Mild redness and swelling over the kneecap
  • Hesitancy to walk up or down stairs or inclines, particularly after activity
  • Tight quadriceps and hamstring muscles
  • Turned-in or uneven knee position

Pain Triggers

  • Pain during exercise which gradually worsens
  • Running with flat shoes or on harsh ground can exacerbate symptoms
  • Sprinting, jumping and inclines will make the pain worse

A number of conditions may be co-occurring with Sinding-Larsen Johansson Syndrome, such as Osgood Schlatter’s Syndrome, Sever’s disease, and hypermobility. It is best to get the exact problem diagnosed and treated by an Advance Foot Clinic podiatrist. 

Common causes of Sinding-Larsen Johansson Syndrome

Sinding-Larsen Johansson Syndrome is primarily caused by age-related change to the bony growth plates, however a combination of factors can also contribute. The main contributing factors include:

 

Increased activity levels: Active children who regularly play multiple sports are much more likely to experience Sinding-Larsen Johansson Syndrome due to the increased stress on the patella tendon. 

 

Genetics: We find that growth-related conditions tend to run in families. If an older sibling experienced Sinding-Larsen Johansson Syndrome or a similar condition (e.g. Sever’s disease), it is much more likely to occur in the family. 

 

Foot structure and mechanics: Conditions such as overpronation (where the feet roll inward), genu valgum (knock knees), and hypermobility can all predispose a child to Sinding-Larsen Johansson Syndrome.

 

Inadequate footwear: Footwear without adequate arch support, cushioning, or stability can exacerbate symptoms and make your child more likely to experience Sinding-Larsen Johansson Syndrome or other growing pains. Footy boots, basketball shoes, ballet flats and other flat unsupportive shoes can worsen symptoms. 

Sinding-Larsen Johansson Syndrome Treatments

Your child’s medical history and a physical exam of their lower limbs including their knee will help diagnose Sinding-Larsen Johansson Syndrome. The main methods for treating the condition are:

  • Orthotics: Custom orthotics can be prescribed to correct biomechanical issues which travel up from the feet to put uneven pressure on the knee joint. Orthotics will correct posture for a neutral alignment which reduces stress on the patella tendon and surrounding muscles. 
  • Activity modification and symptom management: Your podiatrist will provide advice on symptom management through limitation of certain activities, and methods of pain control such as icing the area, knee strapping and anti-inflammatory medication. 
  • Stretching exercises: For growth related conditions such as Singding-Larsen Johansson syndrome, stretching and strengthening programs are a key component of effective treatment. Your podiatrist will work out which muscle groups needs work, and provide a detailed program for your child to follow. 
  • Supportive footwear: Choosing the right shoes is crucial in managing knee pain. Look for footwear that offers adequate arch support, cushioning, and a proper fit to reduce stress on your child’s lower limbs.

 

What should I do for Sinding-Larsen Johansson Syndrome?

If your child is experiencing knee pain, we’re here to help. Advance Foot Clinic has 5 convenient locations across Brisbane and Mount Isa.

Book online or call your nearest clinic to arrange an appointment with one of our friendly podiatrists.

Take the first step towards happy and healthy feet.

Ready to give your feet the care they deserve? Book your appointment online or call us and experience our expert podiatry services at any of our six clinic locations.