Rotator cuff tear is known as its symptoms which are pain, limited shoulder range of motion(ROM), and the clicking sound of the shoulder.~On recent research by Health Insurance Review & Assessment Service, the number of rotator cuff tear patients has increased from 508155 to 704838 during 2013-2017. And also the research reported that the difference of effect between surgical treatments and non-surgical treatments was unremarkable. So in most cases, non-surgical treatments are applied primarily on rotator cuff tear except for some serious cases.~Physical therapy and medication are well known for the currently known non-surgical and conservative treatments, but research reported on the treatment of rotator cuff tear by using Korean medicine treatment so far has its weak level. Therefore, it is expected that this study will demonstrate the efficacy of the treatment of rotator cuff tear in Korean medicine treatment and will further pave the way for non-surgical treatment of rotator cuff tear.~Therefore, The investigators conducted an observational trial to analyze the effectiveness of Korean medicine treatment in rotator cuff tear. Retrospective data will be extracted using electronic medical records and computerized data of hospitalized patients. Based on this, investigators will conduct research in the form of a prospective survey and analyze the causal relationship and factors using the two data.~The hospital's medical records will be used to analyze the patient's condition during the hospitalization period and to determine the situation after the end of treatment through a questionnaire. The questionnaire will be developed after consultation with experts from the musculoskeletal system and related societies, and will be used for the questionnaire.
This study is a prospective observational trial. Data of 4 hospitals will be used to find out the efficacy of conservative treatment in rotator cuff tear.