what is ulnar fracture
Ulnar Fractures. The ulna and the radius are the two bones that form the forearm. The two bones bridge the distance between the wrist and the elbow. The ulna is susceptible to âNightstick Fractureâ, an isolated break of the bone largely due to impact to the ulna. While an ulnar fracture includes a substantial list of causes for this injury, the dominant cause is contact sports.