218 



LAMENESS OF THE HORSE 



Upon manipulation of the patellar I'egion, one is impressed 

 with the fact that hyperesthesia does not exist in proportion to 

 the pain manifested during locomotion. In some cases a gel- 

 atinous swelling is present and may be detected by palpating 



Fig. 50 — Cliionic gonitis. The knuckling which results from long cuntimKil 

 inactivity of the crural muscles in chronic cases is marked in this instance. 

 Photo by Dr. L. A. Merillat. 



between the straight ligaments of the patella. "Williams, Hughes, 

 Merillat, liadley and others have directed attention to the exist- 

 ence of floating masses {corpora orijzoidea) in the synovial cap- 

 sule of this joint in gonitis, and as with all cases of arthritis, 

 irreparable damage is often done the articular cartilages during 

 the course of the ailment. 



