Osgood-Schlatter Disease Diagnosis and Management

Diagnostic Approach

Plain radiographs are the first imaging study, showing irregularity and fragmentation of the tibial tubercle apophysis, soft tissue swelling in acute stages, heterotopic ossification of the patellar tendon, and separated bone fragments at the tibial tuberosity, as recommended by the American College of Radiology 1
MRI is rarely needed but can be obtained if the diagnosis is uncertain or to exclude other pathology, according to the American College of Radiology 1

Osteosarcoma or Ewing sarcoma should be excluded, as they present with persistent non-mechanical pain, night pain, or progressive swelling, as noted by the National Comprehensive Cancer Network 2 and the Annals of Oncology 3

Osteosarcoma or Ewing sarcoma can be excluded in adolescents with bone pain if they do not present with persistent non-mechanical pain, night pain, or progressive swelling, according to the American Cancer Society guidelines 4, 5, 6
Blount disease (tibia vara) can be distinguished from Osgood-Schlatter disease by the presence of tibial bowing and severe obesity, as noted by the American Heart Association 7

Slipped capital femoral epiphysis affects the hip, not the knee, and presents with limited hip range of motion, as stated by the American Heart Association 7