4:08 Diseases of Joints. 



leads into the pelvis. The remains of the walls of the acetabu- 

 lum are very irregular, but have an appearance of healing. On 

 the inner aspect, below the acetabulum, the surface of the 

 ischium is eroded, and shows some necrotic pieces in the 

 interior. There is a considerable but somewhat smooth thick- 

 ening of the outer surface of the ilium. The disease in this 

 case has apparently tended to subside. B. C. ii. M. 6. 



7. 108. Tubercular Arthritis involving- the Head of the 



Femur. — Upper end of the right femur of a child — macerated, 

 illustrating the above. 



The head is wanting and the epiphysial end of the neck is 

 irregular. There is also a deficiency at the top of the great 

 trochanter. F. P. C. 748. 



7. 109. Anchylosis ofthe Hip-joint from Disease(?).— Section 



of the upper half of the right femur and acetabulum of an old 

 woman — macerated, illustrating the above. 



The greater part of the neck has disappeared, and it is- 

 impossible now to say where the head ended and the acetabulum 

 began. The cancellous tissue is well formed, and extends 

 down to the level of the position of the small trochanter. The 

 walls of the medullary cavity and the shaft of the bone are 

 condensed and thick. 



The fusion is so complete in this case, that one is tempted 

 to believe that it has been congenital. G. C. 3480. 



Presented by Alexis Thomson, F.R.C.S.E. 



ANKLE-JOINT. 

 a. Changes primarily or chiefly in the synovial membrane. 



7. 110. Tubercular Synovitis involving- the Astragalus. 



