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Advanced Peyronie's disease (PD) with severe penile curvature requires grafting following plaque incision or partial plaque excision. So far, the ideal graft material has not been identified although various grafts have been studied. In this first matched pair analysis we compared the outcome after grafting with small intestinal submucosa (SIS) and self-adhesive collagen fleece (CF). We retrospectively identified 43 patients after SIS grafting with complete follow-up data sets to be eligible for the present study. A total of 43 patients after CF grafting were matched case by case to the SIS group using the degree of preoperative penile curvature as the primary matching factor. Postoperative outcome was compared with the focus on penile straightening, penile length, potency, relapse rates and long-term complications. Median degree of curvature was 80° in each group. Mean follow-up periods were 31 months after SIS and 39 months after CF grafting. The CF grafting procedure was significantly faster than SIS grafting (80 vs. 104 min, p < 0.001). No major short-term complications were observed. Both techniques gained good long-term penile straightening rates. Relapse of penile curvature was observed after SIS grafting only. Postoperative penile shortening occurred more often after SIS grafting (28% vs. 5%, p = 0.007). With a mean preoperative IIEF-5 score of 16, the SIS cohort significantly differed from the CF cohort with a mean IIEF-5 score of 19 (p = 0.016). The median IIEF-5 score improvement was higher after SIS grafting (+4.5 vs. +1, p = 0.002). Diminished penile sensation was the main long-term side effect with low rates after both procedures (9% and 7% in the SIS and CF group respectively, p = 0.100). In this first matched pair analysis both techniques showed promising long-term results. CF seems to have advantages regarding duration of surgery and preserving penile length. More comparative studies with larger collectives are desirable.

International journal of impotence research. 2018 Sep 07 [Epub ahead of print]

B Rosenhammer, K Sayedahmed, H M Fritsche, M Burger, H Kübler, G Hatzichristodoulou

Department of Urology, University of Regensburg, Caritas St. Josef Medical Centre, Regensburg, Germany. ., Department of Urology, Menoufia University, Al Minufiyah, Egypt., Department of Urology, Surgical Clinic Munich-Bogenhausen, Munich, Germany., Department of Urology, University of Regensburg, Caritas St. Josef Medical Centre, Regensburg, Germany., Department of Urology, Julius-Maximilians-University of Würzburg, Würzburg, Germany.

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