Abstract
We report the results of anterior plate fixation for symptomatic, mid-shaft clavicle non-union. The superior surface is most commonly used for plate fixation. To the best of our knowledge, there are no clinical reports where anterior plate fixation of the clavicle was used.
We included 12 consecutive patients, with symptomatic mid-shaft clavicular non-union, aged between 23 and 56 years during a four-year period (1998-2002). The injury was secondary to RTA in 6 cases, sports-related in 5 and skiing in one. In three patients, the non-union was secondary to superior plating using one third tubular plate, in acute fractures. The most common complaint was anterior shoulder pain (12 cases) followed by brachialgia (4 patients). The operation was performed through an anterior approach. A 3.5mm reconstruction plate was contoured and fixed onto the anterior surface of the clavicle. Bone graft was used in all cases. The average follow up was 22 months. All 12 patients achieved union at an average union time of seventeen weeks.
Compared to superior plating, anterior plating has the distinct advantage that the longer screws can be used (as the clavicle is a flat bone, and the AP diameter is larger compared to superoinferior diameter) thus improving the stability of fixation. Our results show that anterior clavicle fixation is safe and effective in achieving union, even in cases following failed superior plate fixation. We therefore recommend anterior plate fixation and bone grafting in symptomatic nonunions of mid third clavicle fractures.
