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Table 1 Patients demographics (n = 150 knees, 150 patients)

From: Association of patellofemoral morphology and alignment with the radiographic severity of patellofemoral osteoarthritis

Variable (mean ± SD) N (%)
Age, years 60.7 ± 9.5
Gender, F 108 (72%)
Side, right 78 (52%)
Sulcus angle 150.6° ± 9.3°
Lateral trochlear inclination 16.7° ± 5.2°
Medial trochlear inclination 12.5° ± 6.7°
Wiberg classification  
 Type I 54 (36%)
 Type II 75 (50%)
 Type III 21 (14%)
Congruence angle 26.4° ± 21.7°
Patella tilt 15.4° ± 8.3°
Lateral patellar angle 1.6° ± 6.9°
Caton index 0.9 ± 0.1
TT-TG 14.9 mm ± 4.8 mm
  1. TT-TG tibial tubercle–trochlear groove distance