CLASSIFICATION OF ABNORMAL PRESENTATIONS 



235 



the greater part of the foetal waters is discharged, the uterus is 

 firmly contracted upon the calf. 



Prognosis. — Favorable. 



Treatment. — Passing the hand into the uterus, the opened 

 hand is placed against the skull, thumb and fingers to either 

 side, and the calf is pushed back. If possible, the cow is 

 standing, the calf then slips back itself. To adjust the retained 

 leg the hand grasps the shin-bone and pushes the bent knee 

 upward. Now the hand glides downward, takes hold of the 

 claws and draws the limb into the pelvic canal (fig. 39). 



Fig. 39.— Abnormal Position of One Fore Leg. 



Should this method fail, a loop is placed below the fet- 

 lock. Now, while repelling the calf by hand, the leg is pulled 

 gently into the parturient passage. In those cases where the 

 fetlock of the retained leg can be corded, reposition by hand is 

 usually possible. 



The fore leg bent at the carpus and in the pelvic canal. 

 (Pelvic knee presentation, Harms.) 



Causes. — The causes are the same as those in the last pre- 

 sentation. As a rule, the expelling powers have been here 

 more successful, as the foetus was small or the pelvis more 



