title: [Functional evaluation of a "two in one" urethroplasty for hypospadias].
abstract: OBJECTIVE
  To assess the functional result of a "Two in One" urethroplasty which combined oral mucosa graft and local flap.
  
  
  METHODS
  17 patients with hypospadias underwent a "Two in One" urethroplasty, which combined buccal mucosa and local flap for urethral reconstruction. Uroflowmetry was performed 1 day before and 1 year after operation. The urine flow rate, voided volume and urine flow curves were detected using a rotating sensor. The results of maximum urine flow rate (Qmax) were expressed as percentiles and compared to the Toguri value from normal children.
  
  
  RESULTS
  Before corrective operation, 12 of 17 patients (70.6%) produced a plateau urine flow curve. 5 patients (29.4%) produced a very low flow curve. The average maximum flow rate was (7.89 +/- 2.29) ml/s per second compared to Toguri values, 12 of 17 patients (70.6%) had a Qmax below the normal 5th percentile. After a "Two in One" urethroplasty, a hell-shaped curve was obtained in 10 patients (58.8%). The maximum flow rate was (11.30 +/- 3.01) mL/s per second. 7 of 17 patients (41.2%) had a Qmax above the normal 25th percentile, 8 patients (47.1%) had a Qmax between the normal 25th percentile and 5th percentile, only 2 patients (11.8%) had a Qmax below the 5th percentile.
  
  
  CONCLUSIONS
  The functional result of the "Two in One" urethroplasty is ideal. The maximum urine flow rate of the patients increases after the operation.
authors.affiliation: Plastic Surgery Hospital, Chinese Academy ol Medical Sciences, Beijing 100144, China.
authors.forename: Yong-Qian
authors.initials: YQ
authors.lastname: Wang
authors.forename: Sen-Kai
authors.initials: SK
authors.lastname: Li
authors.forename: Yang-Qun
authors.initials: YQ
authors.lastname: Li
authors.forename: Qiang
authors.initials: Q
authors.lastname: Li
authors.forename: Li-Qiang
authors.initials: LQ
authors.lastname: Liu
authors.forename: Jia-Jie
authors.initials: JJ
authors.lastname: Xu
mesh_terms: D002675:Child, Preschool; D006801:Humans; D007021:Hypospadias / Q000503:physiopathology* / Q000601:surgery*; D008297:Male; D016896:Treatment Outcome; D014521:Urethra / Q000503:physiopathology* / Q000601:surgery*