Table 1 Frequency of MRI-detected cartilage damage (WORMS grade ≥ 2) in the patellofemoral joint stratified by the presence of MRI-detected mediopatellar plica
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 | 212 (62.0%) | 104 (58.1%) | 108 (66.3%) | 44 (57.9%) | 55 (79.7%) | 9 (50.0%) |
Lateral patella | 141 (41.2%) | 80 (44.7%) | 61 (37.4%) | 19 (25.0%) | 30 (43.5%) | 12 (66.7%) |
Anterior medial femur | 136 (39.8%) | 67 (37.4%) | 69 (42.3%) | 28 (36.8%) | 33 (47.8%) | 8 (44.4%) |
Anterior lateral femur | 90 (26.3%) | 49 (27.4%) | 41 (25.2%) | 15 (19.7%) | 20 (29.0%) | 6 (33.3%) |