Talk:Pelvimetry/Archive 1

Archive 1

I'd like to propose editing this article on the basis of its disempowering, idealogically unsound language. Specifically, the following passage: "Pelvimetry used to be performed routinely to see if a trial of labour should be allowed." The use of the word "allowed" implies that the woman's birthing process is not her own, that it is owned by an institution or external entity.Daharja 05:40, 8 February 2007 (UTC)Daharja.

Go for it Maustrauser 09:31, 8 February 2007 (UTC)

While your changes sound reasonable, Daharja, try to keep in mind that "empowerment" and "ideological soundness" are not a requirement for Wikipedia. Zachen3 (talk) 04:30, 30 June 2008 (UTC)

"Since obstetricians continue to place women in this position for their requirement of 'access', not considering the birthing mother's needs to be in a better position to open her pelvis, it is more likely that women will be given a potentially false diagnosis that their pelvis is too small to birth their baby....." This part of article implies that obstetricians do a harmful practice for their own interest,and the 'access' is not at all necessary. It has been omitted that most babies can come out via the passage in that lithotomy position. It should also be considered that fetal head trauma chance is more in upright or sqatting position. It should also be mentioned that normal vaginal delivery is decided after various considerations,not solely on pelvimetry.

Addition By Mary Derry Student Midwife (----) Pelvimetry is used to determine whether a women can safely give birth vaginally. Pelvimetry determines the the size of the pelvis including the plane of least dimension, which is found in the mid pelvis and determines the distance between the interspinous (bispinous) distance approx. 10.5 cm. when this distance is reduced there is a possibility of deep transverse arrest. pelvimetry is a true assessment of the pelvic transverse diameter as well as the anterior posterior (AP) diameter for safe passageway of the fetal head. the Obstetric Conjugate should measure approx. 11 cm.and is the AP of the pelvis. Diagonal Conjugate extends from the subpubic arch to the sacral promontoryand is the only clinical measurement apron. 12.5 cm.The transverse of the inlet arising at the pelvic brim or illiopectineal line measures approx. 13.5 cm. where the left and right obliques should measure approx.12.5 cm. The transverse of the outlet is the intertuberous measurement, which is approx. 11.0 cm. and can tear during the birth process.

I pulled the following text from the article as it reads oddly and not entirely encyclopedically. Some of this duplicates material already present in the article, while other parts of it sound like either a violation of NPOV or OR. Also, it was formatted incorrectly, and it was signed by the person who added it, which is also improper wiki style. Some of it might be helpful to modify and retain, but at the moment it seems like the article would be better served without it. Metheglyn (talk) 04:29, 28 November 2014 (UTC)

ADDITION BY ROBERT NGABO from BSNM IN GENERAL NURSING_TYPES OF PELVIS

There are four classifications of pelvises. They are the gynecoid, most common female pelvis shape; the android, the most common male shape; the anthropoid, a long pelvis; and a platypelloid or flat-shaped pelvis

The Gynaecoid or genuine female pelvis

It has an almost round brim and will permit the passage of an average-sized baby with the least amount of trauma to the mother and baby in normal circumstances. The pelvic cavity (the inside of the pelvis) is usually shallow, with straight side walls and with the ischial spines not so prominent as to cause a problem as the baby moves through.

The Android pelvis

It has a heart-shaped brim and is quite narrow in front. This type of pelvis is likely to occur in tall women with narrow hips and is also found in African women. The pelvic cavity and outlet is often narrow, straight and long. The ischial spines are prominent. Women with this shape pelvis may have babies that lie with their backs against their mothers’ backs and may experience longer labours. It is important that these women take an active role during their labour and need to squat and move around as much as possible.

The Anthropoid pelvis

It has an oval brim and a slightly narrow pelvic cavity. The outlet is large, although some of the other diameters may be reduced. If the baby engages in the pelvis in an anterior position, labour would be expected to be straightforward in most cases.

The Platypelloid pelvis

It has a kidney-shaped brim and the pelvic cavity is usually shallow and may be narrow in the antero-posterior (front to back) diameter. The outlet is usually roomy. During labour the baby may have difficulty entering the pelvis, but once in, there should be no further difficulty

OTHER DESCRIPTION 1. The Gyneacoid Pelvis: As described above, is the true female pelvis. Its main features are the rounded brim, the generous fore – pelvis (the part in front of the transverse diameter), straight side walls, and a shallow cavity with a broad, well – curved sacrum, blunt ischial spines, a wide sciatic notch and a pubic arch of 90 degrees. It is found in women of average build and height with a shoe size of 4 or larger. It is well suited to child bearing.

2. The Android Pelvis: Is so called because it resembles the male pelvis. Its brim is heart shaped with a narrow fore – pelvis, and has a transverse diameter which is towards the back. The side walls coverage, making it a funnel shape with a deep cavity and a straight sacrum. The ischial spines are prominent and the sciatic notch is narrow. The angle of the pubic arch is less than 90 degrees.

It is found in short and heavily built women who have a tendency to be hirsute. 

This type of pelvis predisposes to an occipito posterior position of the fetal head and is the least suited to child – bearing.

3. The Anthropoid Pelvis: Has a long, oval brim in which the antero posterior diameter is longer than the transverse. The side walls diverge and the sacrum is long and deeply concave. The ischial spines are not prominent and the sciatic notch is very wide, as is the sub – pubic angle. Women with this type of pelvis tend to be tall, with narrow shoulders. Labor does not usually present any difficulties, but a direct occipito – posterior position is often a feature.

4. The Platypelloid Pelvis: is flat, with a kidney shaped brim in which the anteroposterior diameter is reduced and the transverse increased. The side walls diverge, the sacrum is flat and the cavity shallow. The ischial spines are blunt, and the sciatic notch and the sub – pubic angle are both wide. The head must engage with the sagittal suture in the transverse diameter, but usually descends through the cavity without difficulty