Sinding-Larsen-Johansson disease
- Children and adolescents 10-14 years
- Knee pain aggravated by activity
- Tenderness and soft tissue swelling over the inferior pole of the patella.
- Probably traumatic (traction injury) origin
- Closely related to Osgood-Schlatter's
- Tendonitis, followed by calcification or ossification.
- X-ray (right) - osseous fragmentation at lower pole patella
- NOT an apophysitis or osteochondritis.
- Patellar fracture or avulsion infrequent.
- The calcifications are usually incorporated into the inferior pole of the patella, and the natural course of the condition is 3-12 months.
- No need follow up x-ray in most
- Treated symptomatically
- Also responds to quads strengthening exercises
- Rarely, debridement of patellar tendon needed
Content by Dr Íomhar O' Sullivan 03/03/2006. Reviewed br Dr ÍOS 11/01/2007. Last reviewed Dr ÍOS 3/08/10
