Recurrence and complications after transperineal bulboprostatic anastomosis for posterior urethral strictures resulting from pelvic fracture: a retrospective study from a urethral referral centre

Authors


Correspondence: Qiang Fu, Department of Urology, Shanghai Sixth People's Hospital, No. 600 Yi-Shan Rd, Shanghai 200233, China.

e-mail: jamesqfu@yahoo.com.cn

Abstract

Objective

  • To describe the complications of transperineal end-to-end anastomotic urethroplasty in patients with posterior urethral strictures resulting from pelvic fracture.

Materials and Methods

  • A total of 573 patients, who underwent bulboprostatic anastomosis for posterior urethral strictures, were enrolled in this study. Distraction defects were measured using retrograde urethrography combined with voiding cysto-urethrography.
  • All patients underwent perineal excision and primary anastomotic urethroplasty. The urethroplasty was considered successful if the patient was free of stricture-related obstruction and did not require any further intervention.
  • The degree of stress incontinence was assessed daily by pad testing.
  • The prevalence of pre- and postoperative sexual disorders was investigated using the International Index of Erectile Function-5 questionnaire.

Results

  • Of 573 bulboprostatic anastomosis procedures performed, 504 (88%) were successful and 69 (12%) were not successful.
  • The mean (sd) maximum urinary flow rate, assessed by uroflowmetry 4 weeks after surgery, was 20.52 (5.1) mL/s.
  • Intraoperative rectal injury was repaired primarily in 28 cases. Recurrence of urethral strictures was observed in 10 (1.7%) patients during the first 6 months after surgery, and in 45 patients from 6 months to 1 year. All of these patients underwent re-operation.
  • Twenty-four (4.2%) patients had mild urge incontinence and 28 (4.9%) had mild stress incontinence.
  • Erectile dysfunction (ED) was present in two (<0.1%) patients before trauma and in 487 (85%) patients after trauma. There was no statistical difference between the incidences of preoperative and postoperative ED (85 vs 86%, P > 0.05).
  • Nine (1%) patients were found to have false passage between the posterior urethra and bladder neck.

Conclusion

  • The majority of complications associated with transperineal bulboprostatic anastomosis can be avoided as long as meticulous preoperative evaluation to define the anatomy and careful intra-operative manipulation are ensured.

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