1Karlsson J,,Amaron H,Siqurjonsson K.Acromioclavicular separa-tions:useful and practical classification for treatment[].Clin Or-thop Trauma Surg.1986
2Ryhanen J,Leminen A,Jamsa T,et al.Anovel treatment of greadⅢacromioclavicular joint dislocations with a hock implant[].Archives of Orthopaedic and Traumatic Surgery.2006