Veterinary obstetrics, including the diseases of breeding animals and of the new-born . edwith hooks or cords ; the repulsion by the operators hand, or bya repeller in the hands of an assistant. In extending a flexed limb, the same general mechanical rulesare to be applied. Take for example a fetus presenting anteriorlyin the dorso-sacral position, an anterior limb flexed at the 107. When the fetus has been repelled, with or withoutdecapitation, and sufficient room for operating obtained, the re-tained foot is corded at the pastern, or as near to that point as ispossible, by one of
Veterinary obstetrics, including the diseases of breeding animals and of the new-born . edwith hooks or cords ; the repulsion by the operators hand, or bya repeller in the hands of an assistant. In extending a flexed limb, the same general mechanical rulesare to be applied. Take for example a fetus presenting anteriorlyin the dorso-sacral position, an anterior limb flexed at the 107. When the fetus has been repelled, with or withoutdecapitation, and sufficient room for operating obtained, the re-tained foot is corded at the pastern, or as near to that point as ispossible, by one of the two methods described on page 579, andthe cord is entrusted to an assistant. 638 Veterinary Obstetrics If impossible at first to attach the cord about the pastern, itshould be made fast as low down on the metacarpus as traction is applied upon this cord by an assistant, theoperator may pass a second cord beyond the first, and, as the footis being brought nearer by traction upon the first cord, the nooseof the second may be pushed over the fetlock and engaged upon. Fig. ioS. Method of Securing the Lower by meansOF A Looped pastern. It is to be emphasized that in correcting a devia-tion of a limb, whether anterior or posterior, the ultimate aim isto get the noose upon the pastern. Until that can be accom-plished, the correction of the deviation is uncertain. Obstetric Operatio7is 639 While the fetus is being repelled, the assistant draws upon thecord and advances the foot. The carpus, by this process, andwith the aid of the operator, passes into the lumbar region,directed obliquely outwards and upwards into the upper portionof the flank in order to afford the greatest possible amount ofroom. The carpus (or tarsus) must not, for this purpose, abutagainst the unyielding lumbar vertebrae or lateral processes, butmust be pushed outward against the yielding flank, and roomthereby afforded for the necessary extension of the foot. At theproper time the
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