From: Anorectal anomalies in the male: revisiting the radiological classification
 | Degree of sacral dysplasia | ||||
---|---|---|---|---|---|
Complete sacrum but fused vertebrae (segmentation anomalies) | Missing one sacral vertebra | Missing two sacral vertebrae | Missing three sacral vertebrae | Total | |
Recto-bulbar fistula (21 cases) | 4 | 2 | – | 1 | 7 (33.3%) |
Recto-prostatic fistula (30 cases) | 10 | 6 | 2 | 2 | 20 (66.6%) |
Imperforate anus without fistula (11 cases) | 3 | 1 | – | – | 4 (36.4%) |