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Three-dimensional anatomy of the pelvis in bladder exstrophy: description of bone pathology by using
M Yazici1, S Sözübir, G Kilicoglu
1Ondokuz Mayis University, Samsun, Turkey.
Insights
Bladder exstrophy causes abnormal pelvic rotation and a shorter anterior segment in children. Three-dimensional computed tomography (3D-CT) revealed inward-projecting iliac wings compared to controls.
Area of Science:
- Pediatric Orthopedics
- Medical Imaging
- Developmental Biology
Background:
- Bladder exstrophy is a complex congenital anomaly affecting the urinary tract and pelvic structures.
- Understanding pelvic structural alterations is crucial for surgical planning and patient outcomes.
Purpose of the Study:
- To quantitatively assess pelvic structural abnormalities in children with bladder exstrophy using 3D-CT.
- To compare pelvic measurements between patients with bladder exstrophy and healthy controls.
Main Methods:
- Six children with bladder exstrophy underwent three-dimensional computed tomography (3D-CT) scans.
- Pelvic parameters including anterior and posterior segment lengths, rotation angles, and iliac wing slanting angles were measured.
- Pelvic 3D-CT scans from four healthy children served as controls.
Main Results:
- Patients with bladder exstrophy exhibited abnormal external rotation of both anterior and posterior pelvic segments.
- The anterior pelvic segment was significantly shorter in affected children.
- Iliac wings in patients projected more inward compared to age-matched controls.
Conclusions:
- 3D-CT imaging effectively demonstrates characteristic pelvic structural deformities in bladder exstrophy.
- These findings highlight significant alterations in pelvic segment length and iliac wing orientation in pediatric bladder exstrophy.
Abstract:
The alterations in pelvic structure that occur in bladder exstrophy were evaluated in six children (one girl and five boys) by using three-dimensional computed tomography (3D-CT). The length and angle of anterior and posterior segments and the slanting angle of iliac wings were measured. 3D-CT scans of the pelvis of four patients with a normal pelvis were obtained to serve as controls. Both anterior and posterior segments were abnormally rotated externally in patients with bladder exstrophy. Whereas the length of the posterior segment is normal, the length of the anterior segment is significantly shorter, and the iliac wings projected more inward than those in the age-matched control subjects.