To explore the clinical efficacy and the technical advantages between minimal incision triple-endobutton to the traditional Arbeitsgemeinschaftfür Osteosynthesefragen (AO) / Association for the Study of Internal Fixation (ASIF)clavicular hook plate technique for the treatment of fresh Rockwood Ⅲ acromioclavicular joint dislocation.

Data were collected from December 2012 to December 2016, minimal incision triple-endobutton technique was used to treat fresh Rockwood type acromioclavicular dislocation patients (group T) and using clavicular hook plate internal fixation patients (group C) data. Group T were 32 cases, and group C were 35 cases. The follow-up time points were postoperative one week, two weeks, one month, three months, six months and twelve months of via X-ray examination. The intraoperative and hospitalization related indicators, such as visual analogue score (VAS score), Constant-Murley shoulder function scores and complications were also collected. The

of average age, return working hours, average hospital days, intraoperative blood loss, surgery time, incision size, average number of perspectives during surgery, VAS score and Constant-Murley shoulder function scores were accepted t test; the results of patient sex, male-female ratio, number of fixed cases of removal and number of complications were performed Chi-square test. Results In this research there were 67 cases, and 65 patients were followed-up for 12 months. In the group T and C, one case missed postoperative visits. Constant-Murley score of group T were as follows: one week (56.3±3.4), two weeks (68.4±4.5), one month (72.1±6.6), three months (78.9±7.2), six months (85.4±7.5) and 12 months(94.1±7.7), Constant-Murley score of group C were as follows: one week(46.3±2.6), two weeks(61.4±3.7), one month(69.8±5.8), three months(77.9±7.0), six months(83.5±7.1) and twelve months(92.2±7.5), and group T were better than that of group C at two weeks after operation, and the difference was statistically significant (F=1.525, P<0.05). The VAS score of group T were as follows: one week(5.60±0.56), two weeks(3.50±0.45), one month(2.90±0.47), three months(1.90±0.51), six months(1.50±0.23)and twelve months(1.20±0.11). The VAS score of group C were as follows: one week(6.50±0.65), two weeks(5.30±0.56), one month(3.10±0.38), three months(2.10±0.57), six months(1.60±0.32) and twelve months(1.30±0.12). The VAS score of group T was better than that of group C at two weeks before operation, and the difference was statistically significant (F=1.549, P<0.05).

Compared with the traditional clavicular hook plate technique, the technique of minimal incision triple-endobutton has the advantages of small surgical trauma, anatomical reduction of coracoclavicular ligament, easy to control, accelerating recovery of postoperative patients and less complication.