Archive image from page 620 of The cyclopædia of anatomy and. The cyclopædia of anatomy and physiology cyclopdiaofana0401todd Year: 1847 ABNORMAL CONDITIONS OF THE SHOULDER JOINT. 599 arthritis exist in this shoulder joint, but also that the acromio-clavicular articulation in the same specimen is enlarged externally; and that, on examining it internally, it presents undoubted traces of this chronic rheumatic disease. Upon the whole, therefore, we feel convinced that this specimen produced by Professor Hargrave as an example of a case of partial luxation inwards, the result of acci- dent, does
Archive image from page 620 of The cyclopædia of anatomy and. The cyclopædia of anatomy and physiology cyclopdiaofana0401todd Year: 1847 ABNORMAL CONDITIONS OF THE SHOULDER JOINT. 599 arthritis exist in this shoulder joint, but also that the acromio-clavicular articulation in the same specimen is enlarged externally; and that, on examining it internally, it presents undoubted traces of this chronic rheumatic disease. Upon the whole, therefore, we feel convinced that this specimen produced by Professor Hargrave as an example of a case of partial luxation inwards, the result of acci- dent, does not really afford any proof that exter- nal injury was the cause of the partial luxation. In thus differing from Professor Hargrave, we would make the same remarks which we have already made in allusion to Sir A. Coo- per's case, at page 591. of this article. The pro- gress of science will soon settle the question. Partial displacement of the head of the //it- merits downwards has been observed to be the result of chronic rheumatic disease of long standing ; but after much diligent inquiry in museums and in books, I can find but two well-marked specimens of this morbid change. The most remarkable of these specimens is a left scapulo-humeral articulation, which is contained in the museum of the College of Surgeons, Dublin. The history of the case is unknown : the preparation formed part of the collection presented by Dr. Kirby to the College of Surgeons in Dublin. The head of the left humerus in this specimen is greatly enlarged, and a proportionate glenoid cavity has been formed to receive it. The head of this bone had descended so much beneath its ordinary situation, that a new glenoid cavity- had been formed to receive it on the axillary border of the scapula. The lower part of the old glenoid cavity was still partially occupied by the enlarged head of the humerus, but the new addition to the cavity extends down- wards for the space of an inch and half below its ordinary s
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