CHAPTER XVII. 



LAMENESS IN THE REGION OF THE 

 METATARSUS. 



1.— Chronic Thickening of the Sesamoidal Sheath. 



Inspection. — lu this condition the flexor tendons are often 

 diseased. Lameness is most evident when -vreight is sup- 

 ported by the lame leg, and has a tendency to increase after 

 exposure to hard work. The fetlock is upright. 



Palpation. — The swelling is immovable and firm. Pres- 

 sure upon it excites pain. The thickening can be so great 

 that the flexor tendons are not felt through it. 



2.— Acute Septic Inflammation of the Flexor Tendon 

 Sheath. 



Inspection. — More or less diffuse swelling in that region 

 (sesamoids) ; wounds discharging pus may be seen. Of 

 diagnostic value is the peculiar position in which the 

 animal holds the suffering leg, viz.: the lame leg is similarly 

 flexed as in inflammation of the stifle joint, but the elevation 

 of the foot is more pronounced, and the toe of the flexed leg 

 is advanced towards the corresponding fore-leg as much as 

 possible. 



Palpation. — The swelling, which is hot and painful, may 

 be of a doughy or firm nature. 



