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Minerva Pediatrica 2000 December;52(12):713-8

language: Italian

Buccal mucosal grafts for secondary hypospadias repair

Marte A., Cotrufo A. M., Del Monaco C., Di Iorio G., De Pasquale M.


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Background and aims. Buccal mucosal grafts are widely used in the treatment of primary hypospadias and urethral stenosis owing to their elasticity, optimal attachment, possibility of generous harvesting and easy preparation. The aim of this study was to check whether buccal mucosal flaps are also valuable in redo surgery for hypospadias complicated by large breaks in the urethra and with scarce residual genital tissue.
Methods. Fourteen patients aged between 3 and 11 years old (mean age 6.6) were selected and operated between December 1993 and June 1999. The patients presented extensive fistulous tracts, roughly ellipsoidal in shape and with a maximum diameter of between 7 and 42 mm (mean length 18 mm). The original technique was: Duplay (7 patients); Onlay buccal graft (1 patient); Snodgrass (1 patient); Tubulised preputial flap (2 patients); Onlay preputial graft (2 patients); Tubulised vesical mucosal flap (1 patient).
The mucosal flap, taken from the lower lip, was used to cover the gap as an onlay patch and recovered with residual genital skin with the interposition, where possible, of a de-epithelised flap.
Results. An optimal cosmetic and functional result was achieved in 10/14 cases with flowmetry >25 percentile according to Toguri nomograms. Three patients presented fistulas: one punctiform fistula resolved spontaneously. The other two cases resolved after corrective surgery. One patient showed meatal regression with slight stenosis that was resolved with MAGPI.
Conclusions. These results appear to be encouraging. Buccal mucosal graft may represent a valid alternative also in the treatment of secondary hypospadia with large breaks in the urethra. No complication was reported in the harvesting area, even if this was carried out at a second stage in the labial area.

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