<prompt> The mechanism of injury of transverse fracture of medial malleolus results due toAbduction injuryAdduction injuryRotation injuryDirect injury  <response>: A i.e. Abduction Transverse fracture of medial malleolus occurs in pronation - abduction injuryQ i.e. the position of foot at the time of injury is pronated and the direction of force upon talus is - towards abduction. If malleolus is pushed off it usually fractures obliquely; if it is pulled off, it fractures transversely. - So in adduction supination injury : transverse avulsion fracture of fibula and veical oblique fracture of medial malleolus occurs. In abduction pronation injury : transverse fracture of medial malleolusQ and oblique fracture of fibula occure. In adduction injury the foot is supinated so ka supination - adduction injury; and in abduction injury the foot is pronated so ka pronation abduction injury. 