[Case-control study on shoulder pain caused by hook palte for the treatment of acromioclavicular joint dislocation].

Objective: To explore causes of shoulder pain and propose prevention measures in treating acromioclavicular joint dislocation.

Methods: From January 2005 to January 2013, 86 patients with acromioclavicular joint dislocation (Tossy III) were treated with hook plate fixation, and were divided into two groups. Bsaed on recovery of shoulder function mostly, the patients who suffered from rest pain, motion pain were named as shoulder pain group, while the patients without pain were named as painless group.