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Updated: May 20, 2026
06:52
An Inertial Measurement Unit Based Method to Estimate Hip and Knee Joint Kinematics in Team Sport Athletes on the Field
Published on: May 26, 2020
[A young soccer player with a painful patella]
Rob G H H Nelissen1, Frits R Rosendaal
1Leids Universitair Medisch Centrum, Afd. Orthopaedie, Leiden, the Netherlands. r.g.h.h.nelissen@lumc.nl
Nederlands Tijdschrift Voor Geneeskunde
|July 13, 2012
Summary
Sinding-Larsen-Johansson syndrome is a knee condition in adolescents. It involves pain and abnormalities in the patella, managed by balancing activity and rest.
Area of Science:
- Orthopedics
- Pediatric Sports Medicine
Background:
- Sinding-Larsen-Johansson syndrome (SLJ) is an overuse injury affecting the knee in skeletally immature individuals.
- It specifically impacts the inferior pole of the patella where the patellar tendon inserts.
Observation:
- A 12-year-old male presented with localized knee pain and tenderness over the lower patellar bone.
- Physical examination revealed no knee effusion and preserved knee function.
- Radiographic imaging demonstrated osseous fusion abnormalities in the lower third of the patella.
Findings:
- The clinical presentation and radiographic findings were consistent with a diagnosis of Sinding-Larsen-Johansson syndrome.
- The condition is characterized by fragmentation or abnormalities at the patellar insertion point.
Implications:
- Accurate diagnosis of Sinding-Larsen-Johansson syndrome is crucial for appropriate management.
- Treatment strategies should focus on activity modification, balancing exercise with adequate rest to promote healing.
- Understanding the biomechanics of the knee in young athletes can help prevent or manage this condition.
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