Lean psoas area does not correlate with clinical outcomes in moderately to severely injured older people.

Objective: Frailty has been associated with worse outcomes in older trauma patients. Specifically, the utility of lean cross-sectional psoas muscle area (LPA) was examined as a potentially simple objective measure of frailty.

Methods: Five hundred and fifty-four patients over the age of 65 were admitted with trauma between 2011 and 2014.