Comparative study of double Endobutton and clavicular hook plate for the treatment of acrimoclavicular joint dislocation.

Abstract

Objective To evahate and compare the outcomes of double Endobutton and clavicular hook plate for the treatment of Rockwood type Ⅲ-Ⅴ acromioclavicular ioint dislocation.Methods From February 2008 to December 2008,38 patients with Rockwood type Ⅲ-Ⅴ acromioclavicular ioint dislocation were treated with double Endobutton(18 patients.including 12 males and 6 females,with the mean age of 38.5±6.2 years)and AO clavicular hook plate (20 patients,including 14 males and 6 females,with the mean age of 34.8±5.9 years)respectively.The difference between the 2 groups was not significant in preoperative evaluation and comparability existed.The indexes of pefioperation and duration of hospital stay.the radiographic outcomes,the clinical outcomes and postoperative complications were statistically compared.Results Duration of operation,blood loss perioperation were signifieandy less in clavicular hook plate group;however,the average incision length was significantly shorter iu double Endobutton group.Double Endobutton group resulted in a less shoulder pain and a better shoulder motion(statistically significant).but there was no statistical difierenee on the rate of good and fair between the two groups.There were also no significant differences between the two groups with regard to infection and loose of internal fixation.Conclusion Double Endobutton ifi believed to be as good as clavicular hook plate for the treatment of Roekwood type Ⅳ-Ⅴ acromioclavicular ioint dislocation.However,with double Endobutton,patients can get les8 shoulder pain and better shoulde motion,which is in favor of early exercise.Because of good biocompatibility,double Endobutton can be retained i11 body long-term and need not to be removed. Key words: Bone plates; Acromioclavieular joint; Dislocations; Comparative study