Comparison between the effect of clavicular hook plate and Kirschner wire fixation in the acromioclavicular joint dislocation and the distal clavicle fracture;

Comparison of efficacy of clavicular hook plate internal fixation and tension band wiring for treatment of acromioclavicular joint dislocation;

Fixation of “8” shape horizontal sreel-wiring for the dislocation of acromioclavicular joint;

Treatment of type Ⅲ acromioclavicular dislocation with clavicular hook plate;

Prospective and comparative study of Atlas titanium cable or clavicular hook plate for total acromioclavicular dislocation;

Treatment of old acromioclavicular dislocation with Wolter plate;