There has been considerable controversy as to the best method of treatment of dislocation of the acromioclavicular joint especially In grade 111 injury. The authors had experienced 29 cases of acromioclavicular dislocation from 1986 to 1991 at Kosin Medical center. 18 patients were treated by operative method and 11 patients were treated by conservative method. The evaluation of clinical result was done after 3 month and 12 month respectively.

The results were as follows.

1. The clinical outcome of conservative treatment was comparable to that of operative treatment.

2. The period of rehabilitation tvas not differ between the two groups.

3. complication rate was more lowcr in the group of conservative treatment.

4. The conservative treatment was the first choice for the acromioclavicular dislocation except in a few situations.