Isolated ulna fractures
Nightstick fracture of the ulna is the second most common single bone forearm fracture, generally resulting from blunt forearm trauma. The junction of the middle and distal thirds of the ulna is mechanically the most susceptible to fracture because of its cross sectional geometry at that point (Hsu). Because this is usually a low energy injury, it may be treated in a cast with close observation, reserving plate or intramedullary fixation for displaced fractures or those failing closed treatment. Isolated radial shaft fractures are less common, more often presenting as a Galeazzi fracture-dislocation

Ulna Fracture
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