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Table 4 Relationship between patellofemoral alignment and morphology with the radiographic severity of lateral PFOA (the grading 3 of PFOA as the referent category)

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

Measures Quarter Range N of cases OR Adjusted OR
SA (degree) 1 124.0-142.0 44 7.66 8.80
2 142.1-150.0 36 5.14 6.00
3 150.1-157.3 38 1.57 1.37
4 157.4-173.0 32 1.00 1.00
Wiberg classification I - 54 0.23 0.18
II - 75 0.48 0.39
III - 21 1.00 1.00
CA (degree) 1 −38.0-9.0 37 0.06 0.04
2 9.1-18.5 43 0.25 0.22
3 18.6-33.8 35 0.47 0.43
4 33.9-58.0 35 1.00 1.00
CDI 1 0.60-0.78 35 1.75 1.21
2 0.79-0.91 39 0.84 0.70
3 0.91-1.03 36 0.72 0.52
4 1.03-1.39 40 1.00 1.00
LPA (degree) 1 −15.0-1.0 38 17.55 16.51
2 1.1-4.0 37 2.54 2.52
3 4.1-7.0 33 2.12 2.08
4 7.1-16.0 42 1.00 1.00
  1. SA sulcus angle, CA congruence angle, LPA lateral patellar angle, CDI Caton-Deschamps index