Objectives: The study aimed to evaluate the new modification of the Duckett technique in decreasing the incidence of urethral strictures for urethral plate transected hypospadias and also explored its clinical application.
Methods: Thirty-three patients (aged 7 months to 12 years, mean age 2.8 years) who underwent repair of primary hypospadias using the new one-stage urethroplasty were enrolled. Clinical data, including cosmetic and its complications, and uroflowmetry data were documented. Uroflowmetry data of 19 patients who underwent Duckett urethroplasty were used as a comparison.
Results: The length of the urethral defect ranged from 2.5 to 5.0 cm. The postoperative follow-up was 14-30 months. Ten patients (30.3%) had fistulas; no patients had strictures or diverticula. All ten fistulas were small (<0.5 cm) and repaired with fistula repairing operation. The appearance of the penis remained satisfactory, and the meatus was located in the normal anatomic position. Among 17 patients who underwent uroflowmetry, all patients were bell-shaped or platforms, and Q was 7.37 ± 2.45 ml/s. Compared with 14 of 19 patients who underwent Duckett urethroplasty, the urethral function achieved with new one-stage urethroplasty was significantly better (p < 0.05).
Conclusions: The incidence of strictures was dramatically lowered in patients with proximal hypospadias. Small fistulas are common complications and can be repaired easily. Based on the uroflow pattern results, the quality of neourethra and function of it were better than Duckett urethroplasty. These preliminary results suggested that the modified procedure seems to be reliable and can be a suitable option for proximal hypospadias.
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