Dr. Radu Alexandru Pintilie

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Anatomy of the female pelvis

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Presentation transcript:

Dr. Radu Alexandru Pintilie THE BIRTH CANAL Dr. Radu Alexandru Pintilie

THE BIRTH CANAL - the bony pelvis -

The true pelvis is an obliqualy truncated, bent cylinder

The pelvis forms a bony ring through which the body weight is transmitted to the lower extremities

Sacroiliac syncondroses Symphisys pubis Sacrospinous ligament Sacrotuberous ligament

Sacrospinous ligament Sacrotuberous ligament

5 1=11 cm 2=12.5 cm 3=13.5 cm 5=12-12.5 cm

PELVIC TYPES 1 - gynaecoid 2 - android 3 - platypelloid 4 - anthropoid

True conjugate Diagonal conjugate – 12 cm Obstetrical conjugate ˃10 cm

11.5 cm

11 cm 9 cm

1 – first plane of Hodge 2 – the descending cilinder( Pigeaud ) 3 – the releasing triangle ( Fochier )

PELVIMETRY The romb of Michaelis The base of Trillat triangle

PELVIMETRY

PELVIMETRY

-soft tissues of the pelvis- THE BIRTH CANAL -soft tissues of the pelvis-

FETUS AT TERM -fetus as a passenger-

The sacro-femural diameter (9 cm) The sacro-pretibial diameter (12 cm) The bitrohanterian diameter (9-10 cm)