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Table 4 Cross-sectional association of MRI-detected mediopatellar plica with bone marrow lesions (WORMS grade ≥ 1) in the patellofemoral joint

From: Prevalence of MRI-detected mediopatellar plica in subjects with knee pain and the association with MRI-detected patellofemoral cartilage damage and bone marrow lesions: data from the Joints On Glucosamine study

Compartment Total Without mediopatellar plica With mediopatellar plica
Adjusted odds ratio (95% confidence interval)*
All types Type A Type B Type C
(N = 333) (N = 179) N = 159 N = 76 N = 69 N = 18
Medial patella 96 1.00 1.35 0.79 1.90 1.89
(28.1%) (Reference) (0.77 – 2.34) (0.36-1.71) (0.94-3.80) (0.63-5.67)
Lateral patella 101 1.00 1.17 1.00 1.20 1.59
(29.5%) (Reference) (0.67 – 2.04) (0.47-2.15) (0.58-2.50) (0.51-4.95)
Anterior medial femur 60 1.00 0.95 0.92 0.66 2.75
(17.5%) (Reference) (0.51 – 1.78) (0.41-2.04) (0.28-1.54) (0.71-10.68)
Anterior lateral femur 67 1.00 1.55 1.02 1.62 2.97
(19.6%) (Reference) (0.81 – 2.99) (0.41-2.51) (0.71-3.68) (0.86-10.23)
  1. *Adjustment for age, gender, BMI, PLR, SA, LPTA, BO, effusion synovitis, Hoffa’s synovitis.
  2. NB) 9 knees without measurement of malalignment were excluded.