458 Diseases of Joints. 



7. 81. Anchylosis after Tubercular Arthritis.— Inner half of 



the left knee of a yonng person — in spirit, illustrating the above. 

 The specimen shows numerous scars on the skin, the 

 result of previous abscesses, also partial dislocation of the tibia 

 backwards, as well as development of fat in the bones and 

 of fibrous tissue round the joint. The anchylosis is fibrous and 

 osseous between the femur and tibia, and fibrous between 

 the patella and the femur. G. C. 3144. 



Presentedby Macdonald Brown, F.R.C.S.E. 



7. 82. Anchylosis after Tubercular Arthritis.— Outer half of 



the previous knee-joint — macerated, illustrating the above. 



The front of the outer articular surface of the tibia articulates 

 with the back of the outer condyle. The upper part of the shaft 

 of the tibia has had a slight concavity looking forwards. The 

 femur and tibia are seen to be anchylosed, partly by bone, but 

 apparently mainly by fibrous tissue. The cancellous texture of 

 the femur, tibia, and fibula is opened out into large spaces, and 

 the trabeculae are delicate and thin. G. C. 3145. 



Fresented by Macdonald Bkown, F.E.C.S.E. 



7. 83. Anchylosis after Tubercular Arthritis.— Lower end of 



a left femur and patella — macerated, illustrating the above. 



The inferior aspect of the condylar surfaces is flattened, and 

 the articular surface is rarefied, remains of cartilage being only 

 seen at the back. The patella has been partially anchylosed to 

 the trochlear surface of the femur. Xo new bone has been thrown 

 out round the femur, and its texture is lightened and greasy. 



G. C. 373. 



7. 84. Anchylosis after Tubercular Arthritis.— Lower end of 



a left femur, upper half of tibia and patella — macerated, 

 showing partial anchylosis and unusual distortion. 



