Tertile 1 | Tertile 2 | Tertile 3 | |
---|---|---|---|
Patellar Length Ratio (PLR) | ≤1.53 | 1.54 – 1.72 | ≥1.73 |
Bisect Offset (BO) | ≤62.93 | 62.93 – 69.51 | ≥69.52 |
Patellar Tilt Angle (PTA) (degrees) | ≤3.5 | 3.6 – 8.3 | ≥8.4 |
Trochlear Inclination (Lateral TI) (degrees) | ≤20.1 | 20.2 – 24.3 | ≥24.4 |
Trochlear Inclination (Medial TI) (degrees) | ≤17.2 | 17.3 – 23.9 | ≥24 |
Trochlear Angle (TA) (degrees) | ≤ −4.8 | −4.7 – 0.7 | ≥0.7 |
Sulcus Angle (SA) (degrees) | ≤134.2 | 134.3 - 141 | ≥141.1 |
Lateral Patellofemoral Angle (LFPA) (degrees) | ≤9 | 9.1 – 14.4 | ≥14.5 |
Congruence Angle (CA) (degrees) | ≤8.6 | 8.7 – 47.6 | ≥47.7 |
Patellar Lateral Subluxation Distance (PSD) (mm) | ≤1.4 | 1.4 – 5 | ≥5.1 |
Lateral Patellar Displacement (LPD) (mm) | ≤1.2 | 1.3 – 5 | ≥5.1 |