On her neurological examination the Lasegue test
was negative, and motor and sensory deficit was absent.
The SLR also called Lasegue's sign, Lasegue test
or Lazarevic's sign is positive if pain in the sciatic distribution is reproduced by passive flexion of the straight leg ie the patient is lying down on his or her back on an examination table or exam floor, the examiner lifts the patient's leg while the knee is straight9.
On examination there may be tenderness over corresponding spinous process, motor and sensory deficit of corresponding affected nerve root, there is associated diminution or complete loss of the reflex tendon jerks in which the affected root is concerned and nerve tension signs like Straight leg raising test, Lasegue test
, Bragaurds Sign, Bowstring sign may be positive.
Lasegue sign-Patient in supine position flex the hip and knee to 90 degree, then keeping the hip flexed extend the knee, if the patient has posterior thigh pain, a positive lasegue test