Randomized trial validates a low-cost surgical simulator for Peyronie’s disease training, enhancing education for urologists.
Introduction Peyronie’s disease (PD) and congenital penile curvature (CPC) are conditions characterized by penile deformity during erection, leading to functional and psychological distress. While surgical correction remains the mainstay of treatment for both PD and CPC, opportunities for hands-on training are limited due to the lack of realistic surgical simulators and the restricted use of cadaveric models, which are costly, scarce, and raise ethical and biohazard concerns. Objective This study aimed to design, fabricate, and validate a realistic, low-cost simulator for PD and CPC surgical training, facilitating the practice of curvature correction procedures, including plication and plaque incision with grafting. Methods The simulator was designed using Fusion360 (Autodesk, USA) and fabricated through silicone moulding. Fusion360 was used to create the corpora cavernosa (CC) and corpus spongiosum (CS) using fusion forms, based on a healthy medical image segmentation for anatomical reference. The silicone moulds were designed in Fusion360 and produced via 3-Dimensional (3D) printing using a Bambu Lab A1 with polyethylene terephthalate glycol-modified filament. After fabricating the CC, CS, tunica albuginea, two dorsal arteries, a deep dorsal vein, Buck’s fascia, and dartos muscle, the assembled structures were 3D scanned using a Shining 3D EINSTAR Rockit handheld scanner to generate a digital model of the simulator. This scan was used to design the outer skin and scrotal moulds in Fusion360, ensuring anatomical accuracy and a precise fit. The anatomical components were cast using silicones of varying Shore hardness (Soma Foama 25, Dragon Skin 30, Ecoflex 20, and Gel 2) to replicate tissue elasticity and firmness. Material selection was guided by literature on penile tissue mechanics and refined through consultation with urology specialists. Six urological surgeons (two with >100 PD/CPC procedures, four with 10–60) evaluated anatomical realism and educational value using a 5-point Likert scale. Results The model achieved high mean ratings for anatomical realism, penile curvature, and tissue feel (4.72 ± 0.67). It was considered useful for teaching plication (4.5 ± 0.84) and plaque incision with grafting (5.0 ± 0). All surgeons strongly agreed that the simulator can shorten the learning curve and should be integrated into urological curricula (5.0 ± 0), demonstrating strong face validity and educational value. Conclusions This validated simulator bridges a critical gap in PD and CPC surgical education. It combines anatomical precision, realistic tissue properties, and low-cost manufacturability to provide a reproducible platform that enhances trainee confidence, improves technical proficiency, and standardizes training in penile reconstructive procedures. Given the positive feedback, it shows strong potential as a viable training tool to be incorporated into standard surgical curricula. Disclosure No
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Rubio et al. (2026) studied this question.
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