Skip to main content

Advertisement

Table 2 Determination of the diagnostic validation of the stump impingement reflex sign

From: The diagnostic value of the stump impingement reflex sign for determining anterior cruciate ligament stump impingement as a cause of knee locking

  Scope (Truth) Positive Scope (Truth) Negative  
Exam (Test) Positive 7 3 10
Exam (Test) Negative 5 13 18
  12 16 28
  1. Positive Predictive Value =7/10 = 0.7.
  2. Negative Predictive Value =13/18 = 0.72.
  3. Sensitivity =7/12 = 0.58.
  4. Specificity =13/16 = 0.81.
  5. Accuracy =20/28 = 0.71.