肩袖损伤英文版MRIInfraspinatusTeresminorSupraspinatusInfraspinatusPathophysiologyIntrinsicFactorsVascularsupply(?significance)Distal1cmofsupraspinatustendon(earlystudies)entuatesabnormalloadingCanleadtointernalimpingementRepetitiveuseTensileoverloadMusclefatigueMicrotraumaMechanismTraumaticPitchingChronic……Painand/orfatigueofcuffRotatorCuffdysfunctionImpingementwithmotionDiagnose1、HistoryPainonthelateralaspectoftheshoulderStiffness,espIRCannotlieonthatsideWeakness,instability,crepitusPartialtearsmoresoreandstifferAcutetearmayhaveincitingeventDiagnose2、PhysicalExamImpingementtestingNEERSIGNHawkin'stest