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Repurposing tools: A peña stimulator as a tool to map the limits of dissection and continence zone during bladder exstrophy repair

      Summary

      Introduction

      The complete primary repair of bladder exstrophy (CPRE) aims to restore normal anatomy through complete mobilization and reapproximation of the bladder neck and proximal urethra.

      Methods

      The Peña stimulator has previously been used to identify musculature in the pelvis. The device is now used to distinguish intersymphyseal bands from pelvic floor and urethral sphincteric musculature during CPRE. The ability to distinguish the levator ani muscles from fibrotic bands assists the surgeon in identifying the appropriate extent of deep pelvic dissection during CPRE.

      Results

      During the anatomic bladder neck recreation, the muscle stimulator demonstrated the striated muscle at the level of the bladder neck and urethral sphincter.

      Conclusion

      Localization of the muscles at the bladder neck and proximal urethra corroborates the concept that pelvic floor physical therapy could enhance the strength of the pelvic floor in children with bladder exstrophy.
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      Reference

        • Caione P.
        • Capozza N.
        • Lais A.
        • Matarazzo E.
        Periurethral muscle complex reassembly for exstrophy-epispadias repair.
        J Urol. 2000 Dec; 164 (PMID: 11061926): 2062-2066