A practical treatise on fractures and dislocations . not yet fully understood. Mr. Collesdoes not think this partakesof the nature of rheumatism. I have myself a specimen of what hasbeen more generally called chronicrheumatic arthritis, occurring in theknee-joint, accompanied with a flatten-ing and eburnation of the articular sur-faces, and Grulliver has shown thatsimilar changes of form in the neck ofthe bone may occur in tolerably youngpersons. I suspect also that it will be found tooccur under a greater variety of circum-stances, and to present a greater varietyof forms, than have yet been
A practical treatise on fractures and dislocations . not yet fully understood. Mr. Collesdoes not think this partakesof the nature of rheumatism. I have myself a specimen of what hasbeen more generally called chronicrheumatic arthritis, occurring in theknee-joint, accompanied with a flatten-ing and eburnation of the articular sur-faces, and Grulliver has shown thatsimilar changes of form in the neck ofthe bone may occur in tolerably youngpersons. I suspect also that it will be found tooccur under a greater variety of circum-stances, and to present a greater varietyof forms, than have yet been described ;and we shall perhaps find a partial ex-planation of this diversity and fre-quency in one single circumstance,namely, the peculiar anatomical struc-ture of the neck. The neck of thefemur stands nearly at a right anglewith the shaft, or at an angle so greatas that the weight of the body, even inhealth, has the effect to gradually depress the head below the top ofthe trochanter major, and to diminish its length. This is seen con- Fia:. Section of a sound adult femur. 368 FRACTURES OF THE FEMUR. stantly in the striking change of form which occurs between child-hood and old age. Now, if from any cause whatever, such as a blowupon the trochanter or upon the foot, the neck or head is made tosuffer, and inflammation, or perhaps only a slight degree of increased Fie. 118.
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