S52: Fracture of forearm

S52.4: Fracture of shafts of both ulna and radius

There are 2 bones in the forearm, the ulna and the radius. The ulna is on the side where your little finger is. The radius is on the side where your thumb is. Both bones in the forearm have an upper, middle and lower section. The ulna and the radius both have a long, straight section in the middle.

You have broken the straight section of your ulna. You have also broken the straight section of your radius.