RT Journal A1 Khan, L.A. Kashif A1 Bradnock, Timothy J. A1 Scott, Caroline A1 Robinson, C. Michael T1 Fractures of the Clavicle JF The Journal of Bone & Joint Surgery JO The Journal of Bone & Joint Surgery YR 2009 FD February 1 VO 91 IS 2 SP 447 OP 460 DO 10.2106/JBJS.H.00034 UL http://dx.doi.org/10.2106/JBJS.H.00034 AB Undisplaced fractures of both the diaphysis and the lateral end of the clavicle have a high rate of union, and the functional outcomes are good after nonoperative treatment.Nonoperative treatment of displaced shaft fractures may be associated with a higher rate of nonunion and functional deficits than previously reported. However, it remains difficult to predict which patients will have these complications.Since a satisfactory functional outcome may be obtained after operative treatment of a clavicular nonunion or malunion, there is currently considerable debate about the benefits of primary operative treatment of these injuries.Displaced lateral-end fractures have a higher risk of nonunion after nonoperative treatment than do shaft fractures. However, nonunion is difficult to predict and may be asymptomatic in elderly individuals. The results of operative treatment are more unpredictable than they are for shaft fractures.