034 Postoperative Progress of Modified Grid Incision and Sealing with Collagen Fleece for Treatment of Peyronie's Disease

Abstract

Introduction Recently, there have been reports on partial plaque excision and grafting with collagen fleece technique regarding long term efficacy. However, there is still concern regarding complete regeneration of tunical defect from collagen fleece graft in terms of regenerative medicine. Previously, we introduced a less invasive modified technique by multiple grid incisions of Peyronie's plaque to minimize weakness of regenerated tunica from the collagen fleece graft and consequent veno-occlusive erectile dysfunction. Objective To assess the efficacy of Modified Grid Incision of plaque and sealing with Collagen Fleece through post-operative progress of 31 patients with prospective follow-up study. Methods From Aug 2018, 31 patients with stable Peyronie's disease (PD) were included. Surgical technique was composed 3 major steps; 1) dissection of the neurovascular bundle or urethra according to the location of plaque, 2) multiple deep grid plaque incisions for complete correction of curvature and deformity and 3) sealing with collagen fleece (TachoSil®) without suturing. Prospectively, we assessed the stretched penile length (SPL), totally straightness, penile sono, erectile function preoperatively and 6, 12, 24, 36 months postoperatively. This study was approved by the Institutional Review Board of the Korea University Hospital. Results Mean patient age was 58.5 years (range: 46–75). The mean curvature was 45.95 (15-90) degrees, 8 with hinge and 7with hourglass deformity. Inflatable penile prosthesis(IPP) was inserted in 4 patients and postoperative 30 months in a patient for poor erectile function. Mean follow-up was 15 months (6-36). Daily massage softened the hard thickening of penis gradually from 3 months until 2 year. On follow-up sonography, subcutaneous thickening gradually decreased to near normal at 1 year and the breakage of tunica by grid incision reunited at postoperative 10-12 months. All patients achieved totally straightness. All patients gained preoperative length after 1.6 year. 96% of patients satisfied in GAQ at 1 year. Minor skin problem was occurred in three patients of IPP. Subcutaneous bulging hematoma was occurred in 2 patients but subsided within 3 months. In postoperative erectile function of 27 patients without IPP, spontaneous hard erection was recovered in 10 and the rest are satisfied with PED5 inhibitors. Conclusions Our prospective progress reports with technical modification of various plaque incisions shows that one can achieve a sufficient surgical effect without making defect of tunica albuginea. Precise understanding of the postoperative progressions are necessary for physician's confidence and encouraging the patients for successful clinical outcomes. Disclosure Work supported by industry: no.