Atlas and epitome of traumatic fractures and dislocations . ected out (below the insertionof the pectoralis major). Between the wall of the thorax, of whichthe second, third, and fourth ribs are visible, and the humerus lies thebrachial plexus, which obviously is exposed to injury by the head ofthe humerus in this dislocation. Between the humerus and the edgeof the deltoid muscle is an empty space from which the adipose andconnective tissue have been removed. This space, under normal condi-tions, is of course filled by the humerus. The circumflex nerve,which supplies the deltoid muscle, is see
Atlas and epitome of traumatic fractures and dislocations . ected out (below the insertionof the pectoralis major). Between the wall of the thorax, of whichthe second, third, and fourth ribs are visible, and the humerus lies thebrachial plexus, which obviously is exposed to injury by the head ofthe humerus in this dislocation. Between the humerus and the edgeof the deltoid muscle is an empty space from which the adipose andconnective tissue have been removed. This space, under normal condi-tions, is of course filled by the humerus. The circumflex nerve,which supplies the deltoid muscle, is seen crossing this space in anoblique direction from the plexus. the external condyle of the humerns, is actually length-ened in many cases—certainly never shortened. This canalso be seen when the patient is inspected from explanation of this lengthening is readily seen whenthe dislocation is produced in the skeleton; the head ofthe humerus being actually found at a somewhat lowerpoint than its normal position in the articular cavity. , /. Anst. /. ReuiihoUl. Alt inch en. FRACTURES OF THE UPPER EXTRE3IITY. 145 Finally, the head of the humerus can be palpated moreor less distinctly in its abnormal position through the Figs. 49-52.—Illustrating the differential diagnosis of subcoracoiddislocation of the humerus. In the figures « stands for acromion.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectfractur, bookyear1902
