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  • Title: Novel Technique for Proximal Bone Anchoring of Penile Prosthesis After Radial Forearm Free Flap Neophallus.
    Author: Cohen AJ, Bhanvadia RR, Pariser JJ, Hatcher DM, Gottlieb LJ, Bales GT.
    Journal: Urology; 2017 Jul; 105():2-5. PubMed ID: 28163085.
    Abstract:
    OBJECTIVE: To describe outcomes of bone anchoring of penile implant in a neophallus with an accompanying video focusing on operative technique and salient tips for surgeons performing these procedures. Penile prosthesis insertion allows individuals with a neophallus to achieve erectile function. Lack of corporal bodies to accommodate cylinders makes anchoring of any prosthesis challenging. Anchoring the device to the pubic bone is one strategy to achieve proximal stabilization. METHODS: A single-institution, retrospective chart review of 10 neophallus patients undergoing penile prosthesis placement from 2006 to 2015 was done. The pubic symphysis is exposed and corticotomy created for placement of the rear tip extender of the implant using a Stryker TPS bone drill. Anchoring sutures through the corticotomy defect, rear tip, and proximal cylinder seat the implant. The remainder of the implantation procedure mirrors that used in native tissue. RESULTS: The overall perioperative complication rate was 20%, with a mean follow-up of 49 months. Seventy percent of the patients required reoperation, with a mean of 1.4 prosthesis revision surgeries per patient. Primary causes of revision included infection, poor fixation of the rear tip, and prosthesis failure. Despite high revision rates, 80% of the patients have fully functioning prosthesis as of last follow-up. Limitations include retrospective study design and the small patient cohort. CONCLUSION: Penile prosthesis placement in the neophallus is feasible and effective. A bone-anchored rear tip is an option to provide proximal stabilization. Continued efforts to minimize the need for revisions are ongoing and necessary.
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