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Theessentialfunctionofrotatorcuffistomaintainthestructuralstabilityandfuctionofshoulder,thus,theinjuryofcuffwill causepainanddysfunctionofshoulderofpatient.cufftearisthemostcommononeamongallthetypesofcuffinjury.According tocurrentclassification,cufftearcanbeclassifiedintofourtypes,thecrescenttear,theUshapetear,theLshapetearandthe massivetear.