Medically reviewed by Jennifer Steinhoff, MD The humerus is your upper arm bone. It is the longest bone in the upper part of ...

Posteriorly displaced fractures may be angulated or displaced medially or laterally. Uncommonly, direct force applied to the flexed elbow may displace the distal humerus fracture anteriorly.

Operative fixation of isolated, closed humeral shaft fractures yielded a mean DASH score of 24.5 at 3-month follow-up. This was compared with a mean DASH score of 39.4 for nonoperative treatment.