Patient selection criteria for vacuum extraction Good candidates Marginal candidates Poor candidates Multiparous Prim parous Protraction disorders 2nd stage Pregnancy at term Pregnancy is post term LGA fetus Wide subpubic
arch Average subpubic
arch Narrow subpubic
arch Good maternal Gestational diabetes Poor maternal compliance compliance Fetus in OA position Fetus in OP position Uncertain position of fetal head Arrest disorders Deflexion, asynclitism Abbreviations: LGA, large for gestational age; OA, occiput anterior; OP, occiput posterior.
During residency I was told to always use rotational forceps to deliver a fetus in the persistendy OP position if the parturient had a gynecoid pelvis (wide oval shape of pelvic bones, wide subpubic
After all aseptic precautions, a 30 mm long, 23G needle was inserted in the midline after gently pulling down the base of penis by the index finger and directed below the symphysis pubis through the Scarpa's fascia and into the subpubic
space till give in feeling is appreciated.
A subpubic cartilaginous cyst is a rare soft-tissue mass lesion derived from the pubic symphysis, which can be either asymptomatic or cause discomfort, pain, and urinary retention.
A subpubic cartilaginous cyst is a rare mass derived from the pubic symphysis.
Eicher used the McRoberts maneuver by positioning the mother's legs to maximize the potential opening for the baby to pass through; he also applied subpubic
pressure by having a nurse apply pressure on the mother's pubic bone to dislodge the impacted shoulder; that as the nurse applied such pressure, he applied traction; and that baby was delivered.
Twenty-one radiological studies were carried out during subpubic
injections (7) in cadavers.
However, some cases of distal urethra obstruction can not be treated using this procedure; in those cases, other techniques such as prepubic urethrostomy (PPU) or subpubic
urethrostomy (BAINES et al., 2001) are indicated.
Female pelves tend to be wider overall and marked by the presence and appearance of the following features: the subpubic
concavity, the ischiopubic ramus, the ventral arc, the greater sciatic notch, the pelvic outlet, and the preauricular sulcus.
Traits considered for sex estimation included the: ventral arc, subpubic
concavity, ischiopubic ramus ridge, greater sciatic notch, nuchal crest, mastoid processes, supraorbital margin, supraorbital ridge and mental eminence.
They include (1) a narrow pelvis (even if the bones are more robust in males), (2) a narrow sciatic notch in males (~30[degrees]), (3) a narrow subpubic
angle, (4) absent or shallow pre-auricular sulcus (deep groove in females), (5) flat auricular area of the ilium (area of articulation with the sacrum), (6) larger symphyseal face in males, (7) flat medial portion of the ischiopubic ramus in males, (8) larger acetabulum in males, (9) shorter pubis in males, and (10) no ventral arc on the pubis (Stewart, 1968; Krogman & Iscan, 1986).
In this regard, it is similar to the calcaneal angle (Didia & Dimkpa, 1999) but is unlike the subpubic
angle (Nwoha, 1992), which has been shown to be sexually dimorphic in Nigerians.