A manual of practical obstetrics . sible to touch the promon-tory in a normal pelvis.) With a finger-nail of the other haud,make a mark on the examining finger where it touches thepubic arch. Withdraw the finger and measure (with a rule)from the mark to its tip. From this measurement deduct halfan inch, and the remaining length gives the conjugate diameterof the brim. The half inch is subtracted because the lengthas measured from the promontory to the under surface of thepubic symphysis (the diagonal conjugate : see Fig. 4, page 36), 1 Take care not to mistake the (sometimes prominent) junctio
A manual of practical obstetrics . sible to touch the promon-tory in a normal pelvis.) With a finger-nail of the other haud,make a mark on the examining finger where it touches thepubic arch. Withdraw the finger and measure (with a rule)from the mark to its tip. From this measurement deduct halfan inch, and the remaining length gives the conjugate diameterof the brim. The half inch is subtracted because the lengthas measured from the promontory to the under surface of thepubic symphysis (the diagonal conjugate : see Fig. 4, page 36), 1 Take care not to mistake the (sometimes prominent) junction of first&nd second sacral vertebra? for the real promontory. PELVIMETRY 283 is half an inch longer than from the promontory to the uppersurface of the pubic joint, the latter being the brim measure-ment it is desired to ascertain. During this examination thewoman should lie on the back with the hips elevated. Another method : patient lies on her left side, near theedge of the bed. Etherize, if necessary, to prevent pain. In-. Pelviraetry with the finger. troduce entire hand into vagina, and dispose it flatwise withthe little finger toward symphysis pubis and the index-fingeragainst sacral promontory. Learn how many fingers can thusbe simultaneously introduced between the two points. Thebreadth of four fingers, in a hand of average size, is about 284 PELVIC DEFORMITIES, two and three-quarters inches. The fingers introduced may beafterward measured by a rule. Fig. 128.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphila, bookyear1895
