The international encyclopaedia of surgery; a systematic treatise on the theory and practice of surgery . the usual methods. IV. Thyroid Dislocations.—The thyroid dislocation, the last of the fourprincipal varieties, is that form of forward displacement in which the headof the bone takes a downward as well as an anterior direction from itssocket. Causes.—Authorities assign as a cause of this injurj-, violence receivedwhile the limb is widely abducted. Although it is often asserted that a blowupon the back, as by a falling object while the thighs are spread, is the usualcause, probably this dis
The international encyclopaedia of surgery; a systematic treatise on the theory and practice of surgery . the usual methods. IV. Thyroid Dislocations.—The thyroid dislocation, the last of the fourprincipal varieties, is that form of forward displacement in which the headof the bone takes a downward as well as an anterior direction from itssocket. Causes.—Authorities assign as a cause of this injurj-, violence receivedwhile the limb is widely abducted. Although it is often asserted that a blowupon the back, as by a falling object while the thighs are spread, is the usualcause, probably this dislocation occurs most often in falling from a height DISLOCATIONS UF THE HIP. 697 and striking obliquely upon the foot or knee, so as to abduct the limbforcibly. Pathology.—The lower, front wall of the capsule gives way, its fibres beingrather thin at this point, and the head of the femur slips forward along thehorizontal ramus of the pubis to the region of the thyroid foramen, lyingsometimes just upon it, sometimes above, and sometimes a little below andbehind this opening. Fig. 573. Fig.
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