Treatment of Ulnar and Radial Shaft Fractures For isolated radial and ulnar shaft fractures, closed reduction and splinting with outpatient orthopedic followup For Monteggia and Galeazzi injuries, urgent orthopedic consultation and usually open reduction with internal fixation (ORIF) Most isolated radial and ulnar shaft fractures can be treated with closed reduction and splinting with subsequent orthopedic referral.