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Table 2 Frequency of bone marrow lesions (BMLs) in the patellofemoral joint stratified by the presence of MRI-detected mediopatellar plica

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

All types

Type A

Type B

Type C

(N = 342)

(N = 179)

N = 163

N = 76

N = 69

N = 18

Medial patella

96 (28.1%)

53 (29.6%)

43 (26.4%)

13 (17.1%)

23 (33.3%)

7 (38.9%)

Lateral patella

101 (29.5%)

58 (32.4%)

43 (26.4%)

16 (21.1%)

20 (29.0%)

7 (38.9%)

Anterior medial femur

60 (17.5%)

30 (16.8%)

30 (18.4%)

14 (18.4%)

12 (17.4%)

4 (22.2%)

Anterior lateral femur

67 (19.6%)

34 (19.0%)

33 (20.3%)

10 (13.2%)

17 (24.6%)

6 (33.3%)