From the case: Patellar instability

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

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

Used in the following article:

  • Patellar instability - “ Patellar instability is the clinical syndrome due to morphologic abnormalities in the patellofemoral joint where the patella is prone to recurrent...”
  • 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...”

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