This paper describes a modification of bilateral posterior iliac osteotomie
s For bladder exstrophy, in which a strip of ilium is resected subperiostea
lly lateral to the sacroiliac joints, allowing easier anterior closure with
less breakdown compared with traditional osteotomies. Thirty-one children
underwent repair of bladder exstrophy between 1974 and 1994, Orthopaedic pr
ocedures included: closed reduction and east application in the newborn per
iod (four patients), classic bilateral posterior iliac osteotomies (12 pati
ents), and bilateral posterior resection osteotomies (15 patients). Dehisce
nce occurred after one dosed reduction, five classic osteotomies, and one r
esection osteotomy, Urinary continence was obtained in four patients who un
derwent closed reduction, nine patients who underwent classic posterior ost
eotomies, and nine patients who underwent posterior resection osteotomies.