Penile enhancement with rectus muscle fascia and testicular tunica vaginalis grafts: an experimental animal study

Purpose To enhance rat penises experimentally with rectus muscle fascia (RMF) and testicular tunica vaginalis grafts (TVG). Methods Twelve Wistar albino rats were distributed into two equal Groups, A and B. There were six rats in each group. RMF and TVG were used to enhance rat penises in Groups A and B, respectively. Circumferences of the penises were measured preoperatively and at three different times after the operation. Two, two and eight rats were killed 10 days, 1 month and 2 months after the operation, respectively, for histopathological examinations. Results When we compared the measurements of preoperative and immediately postoperative circumferences, the mean increase was 23.4 ± 2.9 % in Group A and 19.9 ± 1.7 % in Group B. According to paired t test, the difference was significant ( p 0.05). Histological examinations revealed an intensive inflammatory process at 10 days after the operation. Grafts were found to be totally absorbed in the first- and second-month examinations. Conclusion In our study, implanted TVG and RMF could not survive because of insufficient vascularization and failure to maintain satisfactory surgical success. More studies are needed to increase the effectiveness of surgical techniques.