From the case: Patellar instability

Axial non-contrast
Modality: CT (non-contrast)

- “ Distance from tibial tuberosity to trochlear groove (TT-TG) is one of the best measure for patellar instability. Range: normal : <15 mm borderl...”

Used in the following article:

  • Patellar translation (TT-TG distance) - “ Patellar translation (TT-TG distance) is an analysis performed by overlapping or superimposing axial images of the femoral condyles and tibial tub...”
  • Patellofemoral instability - “ Patellofemoral instability is the clinical syndrome due to morphologic abnormalities in the patellofemoral joint where the patella is prone to rec...”

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