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At least 325 records · Page 18Linked to original sources
PubMed1990

[Value of diagnostic measures in soft tissue diseases and soft tissue lesions of the shoulder joint].

Calcifying tendinitis, acute tendinitis, frozen shoulder, rotator cuff rupture, subluxation of the gleno-humeral joint and injury of the biceps tendon are commonly classed under the blanket term "peri-arthropathy of the shoulder". It is now possible to make a precise diagnosis of these shoulder disorders by means of a clinical examination supported by X-ray examination, ultrasonography, arthrography, computed tomography (CT), magnetic resonance imaging (MRI) and arthroscopy. Calcifying tendinitis is diagnosed by consideration of the patient's history, followed by clinical examination and X-ray examination. Acute tendinitis is a clinical diagnosis, as is frozen shoulder. Ruptures of the rotator cuff can be detected by ultrasonography, which is a screening method; such ruptures can also be detected by arthrography. The localization and extent of the defect are best estimated by arthroscopy. Shoulder instability is another clinical diagnosis. Bony defects of the humeral head (Hill-Sachs lesion) or the glenoid rim are revealed by computed tomography (CT). CT arthrography reveals the presence of any Broca-Hartman lesion in the anterior inferior part of the anterior capsular mechanism. Rupture, subluxation or luxation of the biceps tendon are diagnosed either by clinical examination or by arthroscopy. Knowledge of the sensitivity, specificity and accuracy of the diagnostic procedures makes it possible to carry them out in a standardized, logical sequence. Arthroscopy allows a decidedly more accurate diagnosis than any of the other methods, but as it is an invasive procedure it should be kept until last when diagnosis of disorders of the gleno-humeral joint is required.

Arthroscopy↗
PubMed1988

[An electromyographic study on elevation of the shoulder joint].

To quantitatively analyze the electromyographic activity of the shoulder girdle muscles during elevation of the arm, the action potentials of nine muscles were integrated over 10-degree intervals of corresponding elevation angle. The trapezius, supraspinatus and deltoideus (anterior and middle fibers) muscles showed high activity and their activity increased in accordance with the magnitude of the elevation angle. The integrated EMG activity in the trapezius, supraspinatus and deltoideus (middle and posterior fibers) muscles increased as the plane of elevation was changed from the sagittal plane to the frontal plane. The correlation between the calculated work and the integrated EMG activity during scapular abduction from 0 to 90 degrees was analyzed. The regression coefficients of the trapezius, supraspinatus and deltoideus (anterior and middle fibers) muscles were higher than those of other muscles. The correlation coefficient of the supraspinatus was significantly lower than those of the trapezius, deltoideus and pectoralis major muscles.

Adolescent↗