Anterolateral avulsion fracture of the distal tibial physis is known as ?
Potts fracture
Tillaux fracture
Choparacture
Jones fracture
Ans. is 'b' i.e., Tillaux fracture Tillaux fractures Fracture occurring in older adolescents. Mechanism of injury is an external rotational force with stress placed on the anterior tibio - fibular ligament, causing avulsion of the distal tibial physisanterolaterally. It occurs after the medial pa of the physis has closed but before the lateral pa closes. It is either Salter-Harris type III or IV fracture.