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HomeClinical manifestations of cuff diseaseStiffnessWeaknessInstabilityAcute tears Chronic loss of compressive effect Roughness

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Rotator Cuff Clinical Presentation.

Last updated Wednesday, January 26, 2005

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Figure 7

Figure 8

Figure 9

Instability

The inability to keep the head centered in the glenoid may result from cuff disease.

Acute tears

Acute tears of the subscapularis may contribute to recurrent anterior instability. (Neviaser, Neviaser, 1993, Sonnabend, 1994, Toolanen, Hildingsson, 1993)

Chronic loss of compressive effect

Chronic loss of the normal compressive effect of the cuff mechanism and of the stabilizing effect of the superior cuff tendon interposed between the humeral head and the coracoacromial arch may contribute to superior glenohumeral instability. (Flatow, Raimondo, 1996, Flatow, Soslowsky, 1994, Lazarus, Harryman II, 1995, February 16-21, Poppen and Walker, 1976, Ziegler, Matsen III, 1996) Superior instability is magnified in the presence of wear of the upper glenoid rim (see figures 7-9) (Neer, Craig, 1983) and when the normal supportive function of the coracoacromial arch is lost from erosion or surgical removal. (Wiley, 1991)

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