NCT01123447.

Trial name or title	A prospective randomized trial comparing open reduction and internal fixation with non‐operative treatment for ulnar shaft fractures
Methods	Multi‐centre randomised controlled trial
Participants	Skeletally mature patients (age 10 years of above) with isolated ulnar shaft fractures presenting within 14 days of their injury Estimated enrolment: 100
Interventions	1. Surgery: open reduction and internal fixation using a limited contact dynamic compression (LC‐DC) plate with screws 2. Non‐operative treatment with closed reduction and short‐arm (below‐elbow) cast for 6 weeks
Outcomes	Length of follow‐up: 1 year (also assessed: 2 weeks, 6 weeks, 12 weeks, 6 months) Primary outcome: Disabilities of the Arm, Shoulder and Hand (DASH) score Secondary outcomes: SF‐36, range of motion, pain, grip strength, return to work, and time to union
Starting date	May 2010 Estimated study completion date: December 2015
Contact information	Contact: Kimberly D Carcary, kdcarcar@ucalgary.ca Chief Investigator: Dr. Paul Duffy, University of Calgary/Foothills Medical Centre
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