5 - Pelvic Organ Prolapse (+ anatomy of pelvic floor) Flashcards
define prolapse?
Protrusion of an organ or structure beyond its normal anatomical confines
define female POP?
the descent of the pelvic organs towards or through the vagina
effect of prolapse on multiparous women? (%)
12-30%
effect of prolapse on nulliparous women? (%)
2%
% of parous women with degree of prolapse?
~50%
what % of gynaecological waiting lists is accounted for by POPs?
20%
what is indicated by prolapse at ~10%?
hysterectomies
which viscera is contained in abdomino-pelvic cavity?
abdominal and pelvic
why must the walls of the abdomino-pelvic be flexible?
to withstand changes in volumes of these organs & pressure changes
name 3 layers of pelvic floor?
endo-pelvic fascia
pelvic diaphragm
urogenital diaphragm
which layer of the pelvic floor is similar to a hammock structure?
endo-pelvic fascia
what type of tissue is present in the endo-pelvic fascia?
fibro-muscular connective-type tissue
which 3 structures are surrounded by the endo-pelvic fascia?
uterosacral ligaments
pubocervical fascia
rectovaginal fascia
describe flexibility of endo-pelvic fascia and the effects of this?
Fibro-muscular component can stretch (Uteroscarals)
Connective tissue does not stretch, therefore it breaks
describe the location of the utero-sacral complex MEDIALLY?
medially to uterus, cervix, lateral vaginal fornices and pubocervical & rectovaginal fascia
describe the location of the utero-sacral complex LATERALLY?
sacrum & fascia overlying the Piriforms muscle
where does utero-sacral complex tend to break?
medially - @ the cervix
what is the utero-sacral complex AKA?
Cardinal complex?
which tissue provides the main support of the anterior vaginal wall?
trapezoidal fibro-muscular tissue
where does the pubocervical fascia tend to break?
@ lateral attachments OR immediately in front of cervix
what does the pubocervical fascia merge with CENTRALLY?
base of cardinal ligaments and cervix
what is the pubocervical fascia associated with LATERALLY?
archus tendineus fascia pelvis