236 



Veterinary Elements. 



Ringbone is a disease of the bony structure, occurring 

 as the result of inflammation of the pastern or coffin 



bones, usually 

 on the hind pas- 

 tern, but may be 

 found on the fore 

 limbs. This 

 trouble occurs in 

 different loca- 

 tions on the pas- 

 terns, e. g., if 

 affect in'g the 

 joint between 

 the two pastern 

 bones is termed 

 "high ring- 

 bone," if the 

 joint between 

 the small pas- 

 tern and coffin 

 bone is affected 

 the low ringbone 

 Sometimes the 



A WELL MARKED CASE OF RUSGBONE. 



L. P. B. , Long pastern bone; S. P. B., short pastern 

 bone; the bony enlargement at the joint is 

 plainly seen. 



is said to exist, it is a serious condition. 



enlargement appears on the large pastern bone, and it is 

 then termed "false ringbone." The bony deposit may 

 be at the front or sides of the bones affected, and may 

 cause lameness by interfering with the movement of the 

 tendons or ligaments. Eingbones may be caused by a 

 horse going on the toe, the result of spavin. It is im- 

 portant to remember that the pasterns may be rough, 

 large and prominent at the joints and yet not be affected, 



