342 7 HE FARM DOCTOR. 



bursa under the skin ; and 2^, the distention of a large synovial 

 bursa between the extensor tendon and the capsule of the joint. 

 The first swells out as a uniform rounded tumour on the front 

 of the joint. The second has at first the appearance of a 

 double tumour from the swelling appearing at the two sides of 

 the extensor tendon, and it is only in severe cases and advanced 

 stages that these meet over the centre. They usually result 

 from pricks or bruises, though the second form may be asso- 

 ciated with sprain. Any existing inflammation should be 

 subdued by soothing measures, and a blister applied early to 

 secure absorption of the liquid if possible. Should this fail the 

 liquid may be drawn oif as advised for wind-galls, and the part 

 tightly bandaged. Or a free incision may be made in the lower 

 part of the sac and wet bandages applied to keep down inflam- 

 matory action, while the sac is obliterated by healing from the 

 bottom. ' •■ 



DISEASE OF THE FETLOCK JOINT. 



This is occasionally the seat of simple dropsical effusion, 

 causing it to swell out like wind-galls on the inner and outer 

 sides, just above the sesamoid bones. The swellings are, how- 

 ever, placed more anteriorly than distensions of the tendinous 

 sheath, and pressure upon them' does not cause bulging nor 

 fluctuation behind and below the fetlock, on the line of the 

 tendons. This is not necessarily connected with lameness, though 

 if the result of inflammation of the joint, that is more likely. 

 Inflammation of the joint may be recognised by the habitual 

 resting of the leg, which starts forward at the fetlock, by the 

 appearance of wind-galls just described, and by a swelling heat 

 and tenderness of the entire joint. Bending the joint fully 

 causes intense pain, as does also full exter.sion. 



Treatmetit does not differ from that of o'Jier inflamed joints. 



DISLOCATION OF THE FETLOCK. 



This occurs like that of the knee in connexion with rupture 



