The Tunica Vaginalis Dorsal Graft Urethroplasty: Experimental Study in Rabbits

Calado, Adriano Almeida; Macedo, António; Delcelo, Rosana; Figueiredo, Luiz Francisco Poli de; Ortiz, Valdemar; Srougi, Miguel

doi:10.1097/01.ju.0000164725.53219.be

Cited by 28 publications

(25 citation statements)

References 18 publications

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“…All animals demonstrated a patent and functional urethra, as evidenced by radiographic and histological analyses. There was no evidence of infection or fistula (5).…”

Section: Commentsmentioning

confidence: 92%

The tunica vaginalis dorsal graft urethroplasty: initial experience

et al. 2007

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Introduction: Nowadays, buccal mucosa grafts are the most successful method to reconstruct bulbar urethral strictures. Dorsal placement of the graft has been recently proposed, allowing the graft to be spread fixed on the tunica albuginea of the corporal bodies overlying the stricture. The dorsal graft is ingenious and represents a useful addition to the surgical armamentarium, since it offers a better chance for graft take than does the spongiosum when the urethra is diseased and poorly vascularized. We developed an additional reconstructive option using tunica vaginalis grafts, placed dorsally, for the treatment of anterior urethral strictures. Surgical Technique: A total of 11 patients with anterior urethral strictures were treated with a tunica vaginalis graft urethroplasty. The surgical technique was done as described by Barbagli. The urethra was dissected from the corpora cavernosa and rotated 180 degrees. The dorsal urethral surface was exposed and fully opened. Both the distal and proximal lumina were calibrated. The tunica vaginalis graft was sutured, splayed and quilted over the corpora cavernosa using 6-0 PDS running stitches. The left side of the urethral mucosa was sutured to the graft using 6-0 PDS sutures. A 18F silicone Foley catheter was inserted at this point. The urethra was rotated back to its original position and sutured laterally to the right side of the graft. At the end of the procedure, the graft was completely covered by the urethra. With a follow-up ranging from 7 weeks to 5 months, all patients were voiding well (uroflowmetry > 14 mL per second). Conclusion: This initial experience in 11 patients indicates that tunica vaginalis dorsal graft urethroplasty may be considered within the reconstructive armamentarium of genitourinary surgeons.

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“…All animals demonstrated a patent and functional urethra, as evidenced by radiographic and histological analyses. There was no evidence of infection or fistula (5).…”

Section: Commentsmentioning

confidence: 92%

The tunica vaginalis dorsal graft urethroplasty: initial experience

et al. 2007

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“…Tunica vaginalis can also be employed as an optional graft to reconstruct the urethral plate in the three-in-one concept and has already been investigated [18,19].…”

Section: Discussionmentioning

confidence: 99%

Long-term results with a one-stage complex primary hypospadias repair strategy (the three-in-one technique)

Macedo

Liguori

Ottoni

et al. 2011

Journal of Pediatric Urology

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“…Other advantages such as a lack of hair follicles, a good tensile and physical property resulting in better sutures holding and a very good vascularization were reported. Over the years, it has been used in experimental studies for surgical techniques in urethroplasty (Calado et al 2005, Khoury et al 1989, Talja et al 1987 and in general, good results were observed. In 1998, a study compared an onlay flap with a tube flap performed on a New Zealand rabbit model with a control group.…”

Section: Tissue Engineering 490mentioning

confidence: 99%