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Table 2 Prevalence of MRI lesions according to latent subgroups of kneesa

From: Co-existing patterns of MRI lesions were differentially associated with knee pain at rest and on joint loading: a within-person knee-matched case-controls study

MRI features Score Subgroup I: Minimal lesions Subgroup II: Mild lesions Subgroup III: Moderate morphological lesions Subgroup IV: Moderate multiple reactive lesions Subgroup V: Severe lesions
Synovitis-Effusion 0 66.7 40.0 51.3 15.4 11.3
1 30.6 53.3 39.5 35.4 35.9
2 2.8 6.7 6.6 27.7 39.6
3 0.0 0.0 2.6 21.5 13.2
Hoffa’s Synovitis 0 66.7 43.3 52.6 12.3 11.3
1 30.6 53.3 43.4 72.3 47.2
2 2.8 3.3 4.0 15.4 41.5
Patellofemoral cartilage morphology 0 30.6 3.3 14.5 3.1 3.8
1 11.1 13.3 10.5 3.1 1.9
2 55.6 76.7 61.8 61.5 73.6
3 2.8 6.7 13.2 32.3 20.8
Tibiofemoral cartilage morphology 0 100.0 0.0 0.0 0.0 0.0
1 0.0 100.0 0.0 0.0 0.0
2 0.0 0.0 100.0 100.0 0.0
3 0.0 0.0 0.0 0.0 100.0
Meniscus extrusion 0 69.4 43.3 36.8 7.7 1.9
1 25.0 50.0 36.8 24.6 5.7
2 5.6 6.7 23.7 50.8 67.9
3 0.0 0.0 2.6 16.9 24.5
Meniscus morphology 0 16.7 13.3 10.5 1.5 1.9
1 41.7 60.0 50.0 18.5 5.7
2 41.7 26.7 38.2 69.2 71.7
3 0.0 0.0 1.3 10.8 20.8
Patellofemoral bone marrow lesions 0 47.2 26.7 35.5 15.4 45.3
1 27.8 23.3 25.0 36.9 35.9
2 8.3 30.0 26.3 36.9 15.1
3 16.7 20.0 13.2 10.8 3.8
Tibiofemoral bone marrow lesion 0 75.0 53.3 54.0 0.0 0.0
1 25.0 43.3 44.7 32.3 18.9
2 0.0 3.3 1.3 44.6 47.2
3 0.0 0.0 0.0 23.1 34.0
  1. aValues are displayed in percentage