pelvic brim

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the upper edge of a bowllike structure.
pelvic brim pelvic inlet.

pel·vic in·'let

the upper opening of the true pelvis, bounded anteriorly by the pubic symphysis and the pubic crest on either side, laterally by the iliopectineal lines, and posteriorly by the promontory of the sacrum.

pelvic brim

the curved top of the bones of the hip extending from the anterosuperior iliac crest in front on one side around and past the sacrum to the crest on the other side. Below the brim is the pelvis.

pelvic brim

The bony upper edge of the true (lesser) pelvis, which is the rim of the pelvic inlet (superior pelvic aperture). The pelvic brim comprises the pubic crest and pectineal line of each pubis, the arcuate line of each ilium, the inner edge of the alae of the sacrum, and the sacral promontory. The pelvic brim is oval shaped in females and heart shaped in males.
Synonym: linea terminalis (1); pelvic opening
See also: brim
References in periodicals archive ?
The dissection is sufficient when both ureters are mobilized completely and when each can be traced from the pelvic brim to its insertion into the bladder (see photo above).
Comparison of outcomes of ureteroscopy for ureteral calculi located above and below the pelvic brim.
A leg turned back at knee or fetlock is fairly easy to get--after you push the calf back far enough to straighten it--moving the foot outward in an arc over the pelvic brim.
In the present case, detruncation was the only remedy to relieve impaction of caudal part of fetus which occurred due to lodging of hind limb at pelvic brim and also due to contracted uterus where repulsion became impossible.
Direct injuries generally occur due to failure to recognize the ureter during dissection at the pelvic brim or poor use of clamps or suture ligation to control bleeding.
In this circumstance, although part of the skull is below the plane of the ischial spines, the widest diameter of the fetal head (usually the biparietal diameter) is still above the plane of the maternal pelvic brim, and the fetal head is unengaged.
Identification and dissection of the ipsilateral ureter was done by incising the peritoneum at the pelvic brim and up to the bladder.
Then identify the following pelvic structures: uterine fundus, round ligaments, infundibulopelvic (IP) ligaments, posterior cul-de-sac, anterior cul-de-sac, prevesical peritoneum, and pelvic brim.
After entering the retroperitoneum, identify the ureter between the pelvic brim and Wertheim's tunnel.
The surgeon follows the internal iliac vessels and lifts the ovary to expose the ureter from the pelvic brim to the ureteric canal.
Using this information, an estimate of how many "fifths" of the fetal head are above the pelvic brim can be made by evaluating how many fingerbreadths of fetal head can be palpated above the symphysis pubis on abdominal examination.