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Table 4 Prevalence of knee abnormalities in subjects stratified by age group. Cartilage lesions and osteophytes were considered present for a WORMS score ≥ 2, and all other features were considered present for a WORMS score ≥ 1. Data presented as number of subjects (percentage of group)

From: MRI findings of knee abnormalities in adolescent and adult volleyball players

  Baseline Follow-up
  Adolescents (n = 18) Adults (n = 18) p-value Adolescents (n = 18) Adults (n = 18) p-value
Cartilage lesions 0 (0) 10 (56) <0.001 0 (0) 10 (56) <0.001
Bone marrow lesions 4 (22) 8 (44) 0.289 3 (17) 11 (61) 0.0153
Subarticular cysts 2 (11) 5 (28) 0.402 2 (11) 5 (28) 0.402
Osteophytes 7 (39) 17 (94) 0.001 10 (56) 18 (100) 0.003
Ligamentous lesions 0 (0) 2 (11) 0.486 0 (0) 2 (11) 0.486
Meniscal lesions 5 (28) 10 (56) 0.176 5 (28) 11 (61) 0.0922
  1. P-values presented in bold capture demonstrate significance (p < 0.05)