Trethowan sign is used in radiological diagnosis of?
TB Hip
Pehes Disease
Slipped Capital Femoral Epiphysis
Avascular Necrosis of head of femur
TRETHOWAN'S SIGN In normal hip a line drawn tangential to superior femoral neck (Klein's line) intersects small poion of lateral capital epiphyseal. In posterior displacement of epiphyses the line doesn't intersect.
Radiology Q Bank