[Indications for surgery in distal radius fractures].

In this retrospective study, the results of conservative treatment of 406 fractures of the distal radius are analysed and the limitations of conservative therapy indicated. In all, 107 male patients (average age 45 years) and 299 women (average age 65 years) were examined. In only one-third of these cases were both radiographically and clinically. Of the primarily dislocated fractures, 19% healed in the correct anatomical position with satisfactory to good clinical results. Up to now, treatment of fractures of the distal radius with dorsal tilting has been regarded as a form of conservative therapy. Although certain types of fracture, in particular unstable ones, have always been regarded as cases for operative treatment, no attempt has ever been made to define the limits between conservative and operative treatment. Evaluation of the results clearly indicates that the classification according to Frykman, the one most commonly in use, cannot be used as a primary criterion for operative treatment. In the course of a meticulous statistical evaluation, we defined the radiological parameters precisely with reference to shortening, dorsal tilt and instability and drew up a classification to define the primary indications for operation in cases of fracture of the distal radius. Shortening by over 3mm, dorsal tilting by over 10 degrees, presence of a dorsal debris zone, rupture, or osseous avulsion of the radioulnar syndesmosis as a further instability factor show the limits of conservative therapy and are clear indications for operative treatment.(ABSTRACT TRUNCATED AT 250 WORDS)