 There is no consensus about the best treatment for patients with displaced complete articular distal radius fractures AO type C fractures. Despite this lack of consensus and the lack of available literature on comparative data to guide treatment for this patient population, operative treatment with plate fixation has gained popularity. The aim of this study is to compare the functional outcome of open reduction and plate fixation with closed reduction and plaster immobilisation in adult patients 18-75 years with displaced complete articular distal radius fractures. 