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September 02, 2010  
EDUCATION CENTER: Clinical Overview

Clinical Overview
Definition
Symptoms Take Action Diagnosis and Treatment

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  • Calcific Tendonitis

    Clinical Overview
    Reviewed by Dr. Peter Simonian

    The shoulder is a complex joint that depends on the smooth operation of a number of muscles, tendons, ligaments and other tissues to attain fluid motion. The rotator cuff, a cluster of four muscles and their respective tendons at the top of the humerus, or upper-arm bone, is one of the areas in the shoulder most susceptible to injury and chronic ailments. Calcific tendonitis refers to a build-up of calcium in the rotator cuff, and is often aggravated by an existing condition, such as Impingement or conventional tendonitis in the shoulder. When calcium builds up in the area, fluidity of the joint is reduced, causing pain to the patient.

    The calcium deposit rests between the bone of the upper arm (the humerus) and the rotator cuff, inhibiting the normal, friction-free movement of the joint. Impingement or tendonitis, which reduce the mobility of the joint, allow the calcium deposit to form.

    Causes and Risk Factors

    Causes


    • Pre-existing condition, such as impingement or tendonitis.
    • Overuse
    • Muscle weakness

    Risk Factors


    • Athletes who perform frequent overhead motions, such as water polo and basketball players
    • Overuse of the shoulder by repeated throwing or overhead exercise

    Last updated: Jan-01-00

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