Comprehensive analysis of paediatric pelvic fracture urethral injury: a reconstructive centre experience.

Objective: To analyse our experience in pelvic fracture urethral injury (PFUI) in children and adolescents, with various anastomotic urethroplasties (AUs) used to accomplish tension-free anastomosis described and their surgical outcomes evaluated.

Patients And Methods: From 2008 to 2019, 192 cases including both primary and redo PFUI, which comprised 181 boys and 11 girls aged ≤18 years. The results are presented separately according to gender. Moreover, the two populations were divided in two age-related sub-groups for sensitivity analyses: Group 1 (children) aged ≤11 years and Group 2 (adolescent) aged 12-≤18 years.

Results: The median (interquartile range [IQR]) age at presentation in our series was 14 (9-17) years for boys and 9 (6-10) years for girls. Primary vs redo cases were 85 (47%) vs 96 (53%) in boys and 10/11 vs one of 11 in girls. In the primary male cases (85), the bulbo-membranous junction was the commonest site of injury (63, 74.1%). In boys, transperineal AU (TPAU) was performed in 160 (88.4%) and transpubic urethroplasty (TPU) in 17 (9.4%). In girls, TPU was utilised in nine cases, where two received meatoplasty and vaginal episiotomy. In boys, the overall success rate for TPAU was 81.2% and in primary PFUI cases success for TPAU was 88.3%. Overall success for TPU was 64.7%. In girls, the success rate for TPU was 100%. In boys and girls, the success rates for various AUs utilised between the child and adolescent groups were comparable. The median (IQR) hospital stay was 3 (3-4) days for boys and girls. The median (IQR) follow-up duration was 25 (16-33) months and 20 (17-27) months for boys and girls, respectively. Secondary procedures were performed in 39 boys and one girl, which comprised laser optical internal urethrotomy in 26 (14.4%) boys and redo surgery in 13 (7.2%) boys and one (9.1%) girl. Of all patients, four of the 11 girls and 74 boys (38.5%) were lost to follow-up.

Conclusions: Most paediatric PFUI can be addressed via a transperineal approach with reasonable long-term outcomes. In challenging cases salvage procedures utilising vascular-based flaps as a urethral substitute give satisfactory results. Even young children can be managed with a high success rate in expert hands and these injuries should be addressed by specialist reconstructive urologists.