Home » Bones » Humerus » Non Union of Distal Humeral Frx Non Union of Distal Humeral Frx July 22, 2020 by Data Trace Editor - Discussion: - nonunion of fractures of the distal humerus usually occurs when stable internal fixation has not been achieved Open reduction and internal fixation of delayed union and nonunion of the distal humerus. Reconstruction after malunion and nonunion of intra-articular fractures of the distal humerus. Methods and results in 13 adults. Non-union of fractures of the distal end of the humerus.