The shoulder : rupture of the supraspinatus tendon and other lesions in or about the subacromial bursa / E.A. Codman.

  • Ernest Amory Codman
Date:
1934
Catalogue details

Licence: In copyright

Credit: The shoulder : rupture of the supraspinatus tendon and other lesions in or about the subacromial bursa / E.A. Codman. Source: Wellcome Collection.

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    B. .V. A. Term 5. B. M. Infraspinati (i. B. M. Still scapularis 7. B. M. I.atissimi dorsi 8. B. M. Teretis majoris Common Term Bursa of infraspinatus muscle Subscapular bursa Bursa of latissimus dorsi Bursa of teres major Old Term The writer believes that numbers 2, .'i, and 1 of the above list are es¬ sentially one bursa, although they are often separated by thin, movable films of tissue. He believes numbers a and (i to be really extensions of the joint as is also the synovial lining of the bicipital canal, number 13 in Fig. 18, p. 2!). The bursae numbered !), 10, 11, 12, in the same diagram, are incon¬ stant and have no official anatomic names. Even if vou have satisfied your mind that each term in the B. \. A. list carries its appropriate picture, let me give you my personal way of thinking of some of the parts of the human shoulder. The shoulder. In descriptive anatomy there are no more sharp lines of distinction separating the regions called the shoulder, the neck, the hack, the chest, the upper arm and the armpit, than we indicate in our ordinary uses of these words. Even the bones which compose its skeletal support cannot he sharply defined. Does the upper end of the humerus belong to the shoulder? Anatomists are accustomed to sac no, and describe it with the arm. Surgeons cer¬ tainly think of the upper end as a part of the shoulder, but would have no distinct lower limit. We shall include the upper end ot the humerus above the deltoid tubercle, and leave the other limits still somewhat vague. The shoulder (jirdle is not a com¬ plete girdle because the clavicles are sep¬ arated by the manubrium (top of the sternum) in front, and the scapula? do not quite meet behind. In birds the clav¬ icles do meet and form the wish bone. In fact, “girdle” means the two bones of one side* onlv, so it takes two shoulder girdles to not quite girdle the body. It means for man the two bones which form a saddle for the arm to ride on the body . i.e., the scapula and the clavicle, but in binE and some other creatures it in¬ cludes the coracoid as a separate bone, which is more massive than the scapula.
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