Presentation
Adolescent football player. Ongoing infrapatellar knee pain associated with on-and-off overlying soft tissue swelling. No history of trauma.
Patient Data
Age: 13 years
Gender: Male
From the case:
Sinding-Larsen-Johansson disease
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Calcification of proximal insertion of patellar tendon, best appreciated on lateral view. Mild overlying soft tissue swelling.
No fracture or dislocation. No joint effusion.
Case Discussion
Sinding-Larsen-Johansson disease typically causes infrapatellar knee pain in active adolescent male patients.
It is considered to be the pediatric version of "jumper's knee".
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