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Table 2 Comparison of Knee MRI measurement between the cases and controls

From: Can MRI knee joint measurements predict the population at risk of ACL injury?

  Cases Controls p value Cohen's d effect size
Mean Standard deviation Mean Standard deviation
LM posterior horn height 7.06 1.70 6.73 1.14 0.343
LM posterior horn length 11.02 2.79 11.41 2.88 0.539
LM posterior horn depth 25.64 3.69 23.4 3.25 0.007* 0.632 (0.169–1.092)
LM volume 987.38 350.87 880.75 476.24 0.241
MM posterior horn height 7.40 2.15 7.35 1.05 0.904
MM posterior horn length 14.97 4.42 17.5 3.55 0.01* 0.620 (0.147–1.088)
MM posterior horn depth 23.59 3.79 22.97 3.21 0.447
MM volume 1083.91 755.62 1507.97 511.26 0.007* 0.626 (0.172–1.076)
LFC sphere diameter 36.11 2.8 35.44 3.18 0.320
MFC sphere diameter 38.61 3.74 36.22 3.28 0.004* 0.667 (0.212–1.118)
LTP length 41.02 4.41 39.35 4.13 0.089
MTP length 49.54 3.69 49.43 6.99 0.935
Patella tendon horizontal diameter 27.03 3.08 25.27 3.41 0.018* 0.551 (0.095–1.004)
Patellar tendon vertical diameter 4.65 0.90 4.60 0.81 0.400
  1. All measurements are in mm; asterisks indicate statistical significance (p < 0.05)
  2. LM lateral meniscus, MM medial meniscus, LFC lateral femoral condyles, MFC medial femoral condyles, LTP lateral tibial plateau, MTP medial tibial plateau