Sinding Larsen Johansson Lesion

Sinding Larsen Johansson

Sinding-Larsen-Johansson Lesion or syndrome affects young athletes and children causing pain at the front of the knee, at the lowest point of the patella or kneecap. Symptoms are very similar to Patella tendonitis, but the injury is more like Osgood-Schlatter disease.

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Sinding-Larsen-Johansson symptoms

Symptoms of Sinding Larsen Johansson syndrome usually affect adolescents and include:

  • Pain at the front of the knee
  • Symptoms are worse during and after exercise
  • Specifically the bottom (lower pole of the kneecap) is tender
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What is Sinding-Larsen-Johansson syndrome?

Sinding-Larsen-Johansson lesion or syndrome is one of a group of injuries called osteochondroses. They cause knee pain in children. Other similar injuries include:

It usually affects young boys, up to the early teens, following a period of rapid growth. This is because of excess traction on the patella. It is the adolescent equivalent to Jumper’s knee or patella tendinopathy.

Cases of Sinding-Larsen-Johansson usually correct themselves once the skeleton matures.

Alternative diagnoses include:

Osgood Schlatter disease which affects the knee at the point where the patella tendon inserts into the tibia (shin bone).

A bipartite patella occurs when the patella has a natural split in it and is not the result of a fracture.

Treatment

Treatment includes the following:

Rest

Relative rest from aggravating activities. This does not necessarily mean complete rest. You may be ok to simply reduce your training load, or modify your activities. For example, avoid high impact jumping, sprinting or fast changes of direction. Instead, swim or cycle.

Cold therapy

Cold therapy helps ease pain and inflammation. Apply a cold therapy compression wrap for 10 minutes every couple of hours initially. As your symptoms improve reduce to three times a day.

Stretching

Perform gentle quad stretching exercises provided they are pain-free. This is important so the muscle and tendon unit can cope with the loads that are required for the sport.

Patella knee support

Wear a knee support or patella tendon strap to help support the joint and relieve some of the load on the patella tendon.

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Patella strap

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