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Table 2 Medial meniscus degeneration grade (average ± SD) according to Jerosch et al. 17) at 4 portions

From: MRI study of medial meniscus degeneration of osteoarthritic knees with or without posterior root tear

group portion

MMPRT + 

MMPRT-

p-value

Anteromedial

1.72 ± 0.67

1.40 ± 0.78

0.050

Medial

2.29 ± 0.68

2.11 ± 0.89

0.637

Posteromedial

2.73 ± 0.79

2.80 ± 0.84

0.668

Posterior

2.56 ± 0.65

2.67 ± 0.73

0.508

  1. MMPRT: medial meniscus posterior root tear,
  2. The p-value determined by the Mann–Whitney U test was presented up to three decimal places