Lasиgue sign

Lasиgue sign
1. in sciatica, flexion of the hip is painful when the knee is extended, but painless when the knee is flexed. This distinguishes the disorder from disease of the hip joint. Cf. Demianoff s. 2. dorsiflexion of the foot during the straight-leg lift test exacerbates the pain in S1 radiculopathy.

Medical dictionary. 2011.

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  • Lasиgue sign test — La·sиgue sign, test (lah segґ) [Ernest Charles Lasиgue, French physician, 1816–1883] see under sign, and see straight leg–raising test, under test …   Medical dictionary

  • Demianoff sign — with the patient in dorsal decubitus position, extreme pain when the attempt is made to lift an extended lower limb above ten degrees, a sign of a lesion in the erector spinae muscles of the lumbar region. Cf. Lasиgue s …   Medical dictionary

  • straight leg–raising test — (for lumbar radiculopathy) with the patient lying supine, the symptomatic leg is lifted with the knee fully extended; pain in the lower extremity between 30 and 90 degrees of elevation indicates lumbar radiculopathy, with the distribution of the… …   Medical dictionary

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