title: Acetabular coverage in bladder exstrophy: role of 3-dimensional computed tomography.
abstract: We studied the acetabular coverage in bladder exstrophy patients and normal control children. The study included 13 patients with bladder exstrophy, who were divided according to their ages into group I below 5 years, group II between 5 and 10 years, and group III above 10 years of age. Four normal children served as controls, 2 were below 5 years, one was 7 and one was 12 years old. We measured the acetabular coverage (AC) and the center-edge-angle (CEA) by utilising the reconstructed 3-dimensional CT images. The mean right and left AC angles were 82 +/- 12 and 82 +/- 20 degrees in group-I, 107 +/- 15 and 103 +/- 17 in group-II and 119 +/- 24 and 116 +/- 22 in group-lII, respectively (p < 0.05). The mean right and left CEA angles were 33 +/- 4 and 32 +/- 4 degrees in group-I, 30 +/- 4 and 29 +/- 5 in group-II and 25 +/- 2 and 24 +/- 1 in group-III, respectively (p < 0.05). In controls, the mean right and left AC angles were 151 +/- 2 and 153 +/- 2 degrees for children below 5 years, 166 and 165 degrees in the 7 year-old child and 180 and 180 degrees in the 12 year-old child. The CEA angle ranged from 15 to 25 degrees. Acetabular coverage in bladder exstrophy patients is deficient during the first 5 years of life. Although it gradually improves over time, it does not reach to normal value.
authors.affiliation: Mansoura University Hospital, Mansoura Faculty of Medicine, Mansoura, Egypt. hanielmowafi@yahoo.com
authors.forename: Hani
authors.initials: H
authors.lastname: El-Mowafi
authors.forename: Mohamed
authors.initials: M
authors.lastname: El-Sherbiny
authors.forename: Mohamed
authors.initials: M
authors.lastname: Abou-ElGhar
authors.forename: Ashraf
authors.initials: A
authors.lastname: Hafez
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging / Q000473:pathology*; D000293:Adolescent; D000328:Adult; D001746:Bladder Exstrophy / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology*; D001848:Bone Diseases, Developmental / Q000209:etiology / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D014057:Tomography, X-Ray Computed