MAGNETIC-RESONANCE-IMAGING IN ACUTE PHYSEAL INJURIES

Magnetic resonance imaging (MRI) permits noninvasive evaluation of the cartilage of the growth plate and epiphysis. This paper reports three cases where MRI was used to supplement conventional radiography in th e assessment of acute physeal injuries. In the first patient, MRI was used for postoperative assessment of a radial neck fracture, avoiding further surgical exploration. In the second case, MRI was compared wit h ultrasonography in the diagnosis of proximal humeral epiphyseal sepa ration in a neonate. In the third case, MRI and computed tomography we re compared in evaluation of a Salter-Harris type 4 distal femur fract ure. In all cases MRI was diagnostic. MRI is the investigation of choi ce in acute complex physeal injuries, and is particularly appropriate for use prior to the appearance of the secondary ossification center.