Special Injuries of Bones, Joints mid Muscles. 341 



causes inflammation in the sac. Another plan is to draw 

 off the liquid through the nozzle of a hypodermic syringe 

 and apply a fii-m wet bandage. In some quiet animals 

 a weak solution of iodine may be injected, but this is too 

 often injm-ious or at least fruitless, from the irritability of 

 the horse. Recent puifs wiU sometimes disappear under 

 strong astringent lotions (oak-bark and alum) or under an 

 active blister, or after fii-ing, the contraction of the skin 

 during healing appearing to be a principal cause of their 

 absorption. 



Where there is sprain with much heat, tenderness and 

 tension, treat by rest, purgative, a high-heeled shoe, and 

 fomentations or cooling astringent lotions, to be foUowed 

 by blisters when the tenderness subsides. 



Disease of the bones {Sesamoiditis) must be treated 

 witli severe blisters and even firing, with long continued 

 rest, but if ulcers already exist on the gliding surface of 

 the bones a complete recovery need scarcely be looked for. 



SrrtAIN OF THE INU'EEIOB SESAMOID LTGAIIENTS. 



TheUgamentshelow these pulley-shaved hones behind the 

 fetlock are sometimes sprained, causing great lameness 

 with swelling and tendei-ness below the fetlock pad. 

 Treat as for injury to the suspensory ligament. 



ELASTIC SWELLING IN FKONT OF THE FETLOCK. 



These are of two kinds: 1st, a serous abscess or en- 

 larged bursa under the skin: and 2d, the distension of 

 a large synovial bursa between the extensor tendon and 

 tlie capsule of the joint. The first swells out as a uniform 

 rounded tumor on the front of the joint. The second has 

 at first the appearance of a double tumor from the swell- 

 ing 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, ^hey usually result from pricks or 

 bruises, though the second form may be associated with 

 sprain. Any existing inflammation should be subdued by 

 29* 



