Review Question - QID 219495

A healthy 55-year-old female is involved in a motor vehicle collision and sustains the injury shown in Figure A. She is evaluated in the emergency room and placed into a coaptation splint, then transitioned to a Sarmiento brace at her 1-week outpatient office appointment. She misses her six-week appointment and presents 12 weeks post-injury complaining of persistent pain. Persistent motion at the fracture site is noted on her physical exam. Her most recent radiographs are shown in Figure B. Which of the following is most predictive of progression to nonunion?