A retrospective comparative study of arthroscopic fixation in acute Rockwood type IV acromioclavicular joint dislocation: Single versus double paired Endobutton technique

Rockwood type IV acromioclavicular joint (ACJ) dislocation is a trauma usually needs surgical treatment. Paired EndoButton technique (PET) is used in treating such condition. However, the effect of using different types of PET (single versus double PET) for fixation remains controversial.