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Impingement occurs when inflammation, bone spurs, or fluid buildup causes a rotator cuff tendon to be squeezed and rub against a bone.
Every time you raise your arm above your head, the upper tendon in the rotator cuff (supraspinatus tendon) and the bursa that lies on top of the tendon glide on the underside of the upper end of your shoulder blade (acromion).
Over time, the tendon may wear against the underside of the acromion.
ByHealthwise StaffPrimary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency MedicineAdam Husney, MD - Family MedicineKathleen Romito, MD - Family MedicineSpecialist Medical ReviewerKenneth J. Koval, MD - Orthopedic Surgery, Orthopedic Trauma
Current as ofNovember 29, 2017
Current as of:
November 29, 2017
William H. Blahd, Jr., MD, FACEP - Emergency Medicine
& Adam Husney, MD - Family Medicine & Kathleen Romito, MD - Family Medicine & Kenneth J. Koval, MD - Orthopedic Surgery, Orthopedic Trauma
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