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Theessentialfunctionofrotatorcuffistomaintainthestructuralstabilityandfuctionofshoulder,thus,theinjuryofcuffwillcause painanddysfunctionofshoulderofpatient.cufftearisthemostcommononeamongallthetypesofcuffinjury.Accordingtocurrent classification,cufftearcanbeclassifiedintofourtypes,thecrescenttear,theUshapetear,theLshapetearandthemassivetear.