PARALYSIS OF THE HIND LIMB. 
675 
without assistance. Severe lameness was immediately apparent, the limb 
was relaxed, and collapsed at every attempt to sustain weight on it ; the 
stifle and hock were markedly flexed. At first no change could be detected in 
the muscles, but after some days a depression, about 4 inches deep, became 
visible on the outer side of the muscles attached to the patella. The horse 
was unable to rise for fourteen days, but in three weeks’ time could again 
place weight on the limb. In two months it was put to light work, and in 
three months had entirely regained its usefulness. During its course this 
case also showed some resemblance to crural paralysis, and it is possible that 
it may have been of that character. 
Hollmann saw rupture of the rectus femoris muscle in a cow, followed by 
permanent lameness ; Haubner describes injuries to the extensors of the 
Fig. 256.—Incomplete crural paralysis (from an instantaneous photograph). 
patella in a horse ; Lees a double-sided temporary inflammation of the quadri¬ 
ceps femoris in a horse (hemoglobinuria ?). Meyer saw rupture of the rectus 
femoris, vastus externus and internus muscles in a cow; a distinct depression 
could be detected about 8 inches above the patella. The symptoms were similar 
to those of crural paralysis. 
(Rupture of the straight ligaments of the patella has been seen in horses. 
Mbller saw two cases of rupture of the external straight ligament—in one due 
to a collision with a carriage-pole, in the other, apparently to slipping in the 
stable. Both animals showed inability to bear weight on the limb (supporting 
leg-lameness). At first the animals could not stand on the affected limb at 
all, and later only to a certain extent. Below the stifle only the middle 
and inner straight ligaments could be felt ; in place of the outer was a 
depression. Pressure at this part caused lively pain. After complete rest for 
x x 2 
