Trethowan's sign is positive in slipped femoral epiphysis.
If an anteroposterior view of the hip joint is taken then a line drawn along the superior surface of the neck should pass through the femoral head. If the line remains superior to the femoral head then this is termed Trethowan's sign.
Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page