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Table 2 Identification of ALL tears in group 1 and group 2

From: Timing of magnetic resonance imaging affects the accuracy and interobserver agreement of anterolateral ligament tears detection in anterior cruciate ligament deficient knees

Group 1 (n = 88) Group 2 (n = 60)
  Set as gold standard   Set as gold standard
MSK radiologist (ALL tears detected), n MSK radiologist (ALL tears not detected), n MSK radiologist (ALL tears detected), n MSK radiologist (ALL tears not detected), n
Orthopedic surgeon (ALL tears detected), n 74 5 Orthopedic surgeon (ALL tears detected) 37 13
Orthopedic surgeon (ALL tears not detected), n 7 2 Orthopedic surgeon (ALL tears not detected) 10 0
Sensitivity 0.91   Sensitivity 0.79  
Specificity 0.29   Specificity 1  
PPV 0.94   PPV 0.74  
NPV 0.22   NPV 0  
Accuracy 0.86   Accuracy 0.62  
Kappa 0.86   Kappa 0.62  
  1. Group 1 refers to patients who underwent magnetic resonance imaging (MRI) within 1 month of their index injury
  2. Group 2 refers to patients who underwent MRI within 1–2 months of their index injury
  3. ALL anterolateral ligament, MSK musculoskeletal, PPV positive predictive value, NPV negative predictive value