EXOSTOSIS., 475, 
sheath and some small cysts of that region, may give the.impression 
of their being true jarde. The researches of Gillet, Sipierre, Goubaux 
and Barrier seem to establish that it does not attack the joints of the 
hock; but always remains limited to the head of 
‘the rudimentary metatarsal or to the ligament which 
unites it to the principal metatarsal; a localization 
‘which explains its benignity, known for long time and 
‘so expressed by Lemichel: ‘“Jarde forgives always; 
splints sometimes; spavin never.’’ Some authors, 
however, claim that it may invade the tarsal joints and 
“produce a certain tumor of ankylosis analogous to that 
-of spavin. Whatever it may be, it is. certain that few 
jardes give rise to lameness of any duration and seldom 
do they require treatment. Lameness is great and lasting 
-only in cases where there is complication of ankylosis 
-or when there is lesion of the perforans. 
Astringents and cool applications are rarely used. 
Blisters and deep cauterization are indicated at once. 
When there is false jarde (cyst, tarsal or thoroughpin), an Fig. 106.—A, Jard. 
: - (Goubaux and 
-oily fluid escapes through the points. Barrier.) 
IV.— Curb." 
Old writers called curd the exostosis which: develops outside and 
back of the hock. ‘To-day, notwithstanding the remarks of Palat and 
Sanson, all authors agree in giving that name to the 
bony neoformation developed on the inner side of the 
lower extremity of the tibia, reserving that of javde and 
_jardons to those of the external and posterior faces of 
the hock. ; 
Curb is a rare exostosis. It is ordinarily due to trau- 
matisms and lacerations of the ligamentous apparatus of 
the internal face of the hock. 
The diagnosis is easy, even when the tumor exists on. 
bothlegs.' Onits internal face, the lower extremity of 
the tibia is larger and wider than normal. 
Generally there is lameness only during the period of 
-development of the exostosis: in some cases where it 
remains longer, the bony inflammation having reached ie eae 
the articular surfaces of the hock, the prognosis becomes popes and 
arrier. 
‘more serious. ; 
The treatment of curb does not differ from that of other exostosis. At 
1 This seems to us the “ high spavins ” of English authors. 
