Table 1 Patellar alignment measures
N | Range (S.D.) | Mean | Intraclass Coefficient (ICC) | |
|---|---|---|---|---|
Patellar Length Ratio (PLR) | 38 | 1.2–2.6 (0.3) | 1.7 | 0.997 |
Bisect Offset (BO) | 38 | 50.0–100.0 (10.4) | 68.4 | 0.948 |
Patellar Tilt Angle (PTA) (degrees) | 38 | −2.0–20.9 (5.1) | 5.8 | 0.978 |
Trochlear Inclination (Lateral TI) (degrees) | 38 | 5.2–30.6 (5.4) | 21.5 | 0.997 |
Trochlear Inclination (Medial TI) (degrees) | 38 | 10.4–36.7 (6.9) | 20.9 | 0.997 |
Trochlear Angle (TA) (degrees) | 38 | −14.2–13.1 (6.5) | −1.6 | 0.937 |
Sulcus Angle (SA) (degrees) | 38 | 121.3–152.5 (7.7) | 137.6 | 0.914 |
Lateral Patellofemoral Angle (LFPA) (degrees) | 38 | .9–25.1 (6.5) | 11.6 | 0.992 |
Congruence Angle (CA) (degrees) | 38 | −28.7–78.1 (29.9) | 27.9 | 0.999 |
Patellar Lateral Subluxation Distance (PSD) (mm) | 35 | −3.2–11.8 (3.8) | 3.2 | 0.998 |
Lateral Patellar Displacement (LPD) (mm) | 35 | −8.7–15.9 (5.5) | 3.8 | 0.998 |