Comparison of therapeutic effects of two internal fixations for the treatment of acromioclavicular joint dislocation of Allman Grade III / 中国骨伤

ABSTRACT

<p><b>OBJECTIVE</b>To compare therapeutic effects between Kirschner tension band fixation (TBF) and clavicular hook-plate (CHP) for treating acromioclavicular dislocations of Allman Grade III.</p><p><b>METHODS</b>From Jan. 1995 to Dec. 2007, a total of 39 patients who were diagnosed as acromioclavicular joint dislocation of Grade III were treated with Kirschner tension band fixation (TBF 18 patients, 12 patients were male, 6 patients were female, mean age were (27.50 +/- 12.76) years old, average fixation duration were (4.28 +/- 1.27) months) and clavicular hook plate fixation (CHP 21 patients, 18 patients were male, 3 patients were female, mean age were (34.76 +/- 12.39) years old, average fixation during were (8.29 +/- 1.49) months). All the patients were followed up with a mean period over 4 years. The therapeutic effects of the two groups were compared base on complications, Karlsson scores and re-subluxation.</p><p><b>RESULTS</b>The average period from injury to fixation removal was (4.28 +/- 1.27) and (8.29 +/- 1.49) months in TBF and CHP groups respectively, comparison between the two groups, t = -8.951, P < 0.01, there was statistical difference, and the course of disease in TBF group was shorter than that of CHP group. Five patients in TBF group and 1 patient in CHP group had complications (P = 0.077 > 0.05), as well as 3 patients in TBF group and 1 patient in CHP group had re-subluxation (P = 0.318 > 0.05). Karlsson evaluation results:in TBF group, 15 patients got a grade A result, 3 grade B and 0 grade C; and in CHP groups above data was 20, 1 and 0 respectively (P = 0.530 > 0.05). There was no statistical differences between the two groups in evaluation outcomes.</p><p><b>CONCLUSION</b>The two fixation methods are all effective methods to treat Grade III acromioclavicular dislocation of Grade III, and the long-term outcome is satisfactory.</p>