Proximal radioulnar translocation in association with posterior dislocation of the elbow

Elbow dislocation translocation in a child: A case report

“…The PRUJ translocation, which was first described more than 25 years ago, 9 is the rarest form of elbow dislocation in children. It was thought to be iatrogenic, being produced by incorrect manipulation of the elbow dislocation in pronation 6,8 ; however, cases were reported that translocation was apparently present from the beginning, 12 just as in our patient.…”

“…It is interesting that the need for surgical intervention for radial neck fracture has been the case in all of the previously reported cases of translocation with radial neck fracture, although none experienced delayed union of the fracture. 8 According to the widely accepted classification, 12 pediatric elbow dislocation can occur with or without proximal radioulnar joint (PRUJ) injury. In the case of PRUJ injury, dislocation can be of the divergent (anteroposterior or mediolateral) or translocation (changing place of the radial and ulnar head) type.…”

Convergent dislocation of the elbow: Report of three cases

“…1,6 Indications for open reduction were fractured neck of radius in 3 cases, 5,7 delayed diagnosis in 2, 3,4 and failed closed reduction in 1. 1 Fracture of the radial neck was present in 3 of the 8 reported cases 5,7 and all 3 of our cases. In 1 case, the radial head remained in alignment with the capitellum.…”

“…1,2,5, 6 Isbister has proposed a theory for the transpostion of the radius and ulna, based upon axial loading, valgus carrying angle, and the slope of the medial crista of the trochlear, thus allowing the ulna to pass posterolaterally. 5 On x-ray films, transposition of the proximal radius and ulna can be easily overlooked. Very often the lateral projection gives the appearance of a well-reduced elbow joint.…”

“…7 In the other 2, the radial heads were trapped in the fibers of the brachialis. 5 Difficulty was encountered in retrieving our 3 radial heads, as they were trapped in the muscles of the flexor mass of the forearm.…”