Three-dimensional dynamic external fixation of distal radial fractures. A prospective study

This prospective study describes the experience with a new dynamic external fixator which provides three degrees of freedom, while the centre of rotat ion of all these movements is located in the wrist. 44 patients with unstab le fractures of the distal radius were included. During the period of dynam isation, with a median flexion of 30 degrees, extension of 18 degrees, radi al deviation of 0 degrees and ulnar deviation of 20 degrees the range of mo tion needed to perform activities of daily living was approached. In spite of early mobilisation reduction was maintained. The radiological result was excellent or good in 82% of the patients and the functional result was exc ellent or good in 92% of the cases. Pin track infections were noted rather frequently, possibly related to the interaction between the soft tissues an d the fixator pins. Based on the experiences of the study the device needs further improvement. (C) 1999 Elsevier Science Ltd. All rights reserved.