Khung chu

CC NG KNH CA I KHUNG

Trm Michaelis: 1.K dc 11cmK ngang 10 cm

Gai chu sau trn: ch lm vo khi ng, b ng bo d thy. C th nn mo chu v 2 bn thy ch nh gn tn cg mo chu => GCST

gai chu sau trn

Mm gai L5

2 gai chu sau trn

nh np ln mng

5cm 5cm

4cm

7cm

Nu thai ph b g lng => K cho gc trn di ngn

K trc sau: a.Thai ph ng nghing trc mt BShoc nm nghing, chn di co, chn trn duiGai L5 => b trn x. mu : 17.5cm

K lng gai : b.Gai chu trc trn: - nn theo mo chu ra pha trc, thy ch nh cao ln - nn theo mt pha trc i ln bng gp ' nh cao ln 22.5 cm

K lng mo : c.im cao v xa nht 2 mo chu25.5 cm

K lin mu : d.Mu chuyn ln: ni nh ra 2 bn nhiu nht ca u x. iKhi thai ph ng/co chn ln ' ny ko thay i27.5 cm

ng knh khc2.

Sn Page 1

Median section of the pelvis, showing the planes of the inlet and

outlet. The true (T), obstetrical (O), and diagonal (D) conjugate diameters are indicated. The axis of the birth canal, that is, the path taken by the fetal head in its passage through the pelvic cavity, can be seen to turn at the uterovaginal angle. 5, fifth lumbar vertebra

From

Eo trn:

K nh- hu v1.Mc: H v: gia b di khp v, ni gp nhau ca 2 ngnh ngi hng-

trn l niu oMm nh: ni nh ln gia L5-

phn bit vi mm nh gi (a lin t gia cng I-II hoc II-III): mm nh gi a tay sang 2 bn thy 2 l xng cng => ng ra ca cc r TK ui nga. Cn mm nh tht ko thy l ra TK cng, a tay ln pha trn thy hng

Cch o:Cho ngn tr+gia tay (P) => m o => a ln ln theo mt trc x. cng tm mm nh tht

-

Khi chm ti mm nh => t u ngn gia vo mm nh, nng bntay ln t bn tay ngn tr chm vo b di khp v

-

gii hn trc: b trn x. mu, sau: mm nh, 2 bn: 2 g v danhK tiu khungThursday, June 4, 2015 4:00 PM

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