A New Approach to Predicting Length Gain in Penile Lengthening Surgery: MRI-Based Regression Analysis and Evaluation With a Monte Carlo Simulation
Andrologia, cilt.2026, sa.1, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 2026 Sayı: 1
- Basım Tarihi: 2026
- Doi Numarası: 10.1155/and/6711958
- Dergi Adı: Andrologia
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, EMBASE, Gender Studies Database, Academic Search Ultimate (EBSCO), Natural Science Collection (ProQuest), Biological Science Database (ProQuest), Biomedical Reference Collection: Corporate Edition (EBSCO), Health Research Premium Collection (ProQuest)
- Anahtar Kelimeler: MRI, penile augmentation, predictive modeling, suspensory ligament, suspensory ligamentolysis
- Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet
Özet
Objective: This study aimed to evaluate the predictive value of preoperative magnetic resonance imaging (MRI)-measured suspensory ligament length for postoperative penile length gain in patients undergoing penile lengthening surgery. Materials and Methods: This retrospective study included 20 patients who underwent suspensory ligamentolysis between 2020 and 2025 and had available preoperative penile MRI records. Corpus cavernosum length and suspensory ligament length were measured on sagittal MRI sections. Intraoperative flaccid/stretched lengths and postoperative follow-up data at months 1 and 3 were recorded. Data analysis was performed using Pearson correlation, linear regression, and Monte Carlo simulation. Results: The mean age of the patients was 28.15 ± 6.11 years. A statistically significant difference was observed between pre- and postoperative penile lengths (p < 0.001). MRI-measured suspensory ligament length showed a significant positive correlation with postoperative penile length gain (Pearson’s r = 0.519, p < 0.05). Regression analysis resulted in the development of the predictive formula y = 0.643 + 0.708 × x for estimating postoperative gain. The Monte Carlo simulation indicated that 90% of simulated outcomes fell between 2.22 and 2.94 cm of postoperative penile length gain. Conclusion: Preoperative MRI-based anatomical assessment may provide clinically useful predictive information regarding postoperative penile length gain. However, the proposed regression model should be considered exploratory until validated in larger prospective studies. The developed mathematical model may help provide patients with realistic expectations and support surgical planning based on objective anatomical criteria.