Flexion Adduction Internal Rotation Test (Fair Test)

Indication: to detect compression or irritation of the sciatic nerve by the piriformis

Procedure: The patient is sidelying with tested leg on top. The tested leg is passively brought into a position of flexion, adduction, and IR

What constitutes a positive test: Pain in the region of the pirformis

Validity

  • Sensitivity=.88
  • Specificity=.83
  • -LR=.14
  • +LR=5.2

(Fishman et al 2002; Jari et al 2002)

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