492 Diseases of Joints. 



This specimen was formerly described as one of " scrofulous 

 disease," but arthritis deformans seems a more probable cause 

 of the condition. B. C. ii. M. 10. 



7. 172. Advanced Arthritis Deformans (?) with Anchy- 

 losis. — Posterior half of a vertical transverse section of a 

 right hip-joint — soft parts cleaned off— in spirit, illustrating 

 the above. 



"This disease took place eight years before the patient's death, but 

 with what symptoms I could not learn. He had acquired, however, by 

 throwing back the pelvis, the power of walking, although the anchylosis 

 had formed in the complete bent state of the joint. There is still a 

 cartilaginous crust between the bones ; but very little alteration in the 

 form of either bone has taken place, nor has the anchylosis been attended 

 with much adhesive ossific inflammation." 



"Presented to me" (Mr G. Wilson) " by Mr Daw, house-surgeon to 

 St. George's Hospital" (1808). 



The lower side of the neck of the bone, near the head, is 

 enlarged, and there is also some enlargement of the head itself 

 within the acetabulum, as well as of the margins of the aceta- 

 bulum. 



These alterations remind one of the changes in arthritis 

 deformans. Possibly the patient with the disease advancing 

 had been confined to bed, and had kept the knee flexed for 

 some time, after which it would perhaps be impossible to 

 straighten it. W. C. H. 59. 



7. 173. Advanced Arthritis Deformans, with Anchylosis.— 



Anterior half of the previous specimen — macerated. 



There are bony outgrowths at the articular margins of the 

 bones, and the previously noted enlargements of the head and 

 neck of the femur are well shown. The former position of the 

 cartilage is still recognisable. The cancellous and compact 

 tissue of the femur remain well developed. W. C. H. 70. 



