阴茎体白膜两侧睾丸鞘膜移植阴茎增粗术实验研究

目的:探讨犬阴茎体白膜两侧自体睾丸鞘膜移植阴茎增粗术的治疗效果及手术并发症。方法:取5只雄性杂种狗自体睾丸鞘膜移植于阴茎白膜两侧的纵形切口,以扩大阴茎白膜腔、增大阴茎海绵体容积、增粗阴茎;手术前后进行疲软及勃起状态下阴茎海绵体周径的测量及两侧阴茎海绵体动态灌注测压(DIC);术后3个月行组织学检查。结果:施行5只10侧,术后3个月勃起状态下阴茎海绵体周径平均增加21.1%,疲软状态下增粗不明显,DIC参数与术前相比无统计学差异;无其他严重并发症;组织学检查移植物内轻度炎性反应和纤维化,其上有白膜的重新形成。结论:该手术方法使勃起状态下阴茎增粗效果显著,是一种安全的、真正针对勃起组织的阴茎增粗方法。

Experimental Study of Augmentation Phalloplasty Using Tunica Vaginalis Grafts in Bilateral Albuginea of Penile Corpus

Objective: To study the effect and complications of augmentation phalloplasty by implanting autogenous tunica vaginalis grafts into the bilateral albuginea of the penile corpus. Methods: Five mongrel dogs underwent augmentation phalloplasty with bilateral autogenous tunica vaginalis grafts. The increase in the volume of the corpora cavernosa was achieved by applying autogenous tunica vaginalis grafts to longitudinal openings made bilaterally in the albuginea along the whole length of the penile cavernous corpora. The perimeter of the penile cavernous corpora was measured in the flaccid state and during erection and dynamic infusion cavernosometry (DIC) was conducted for each dog before and after the operation. Histology of the penis was examined using hematoxylin and eosin stains. Results: The average increase in the perimeter of the penile cavernous corpora was 21.1 % in the erectile state but unobvious in the flaccid state 3 months after surgery. There were no statistically significant differences in cavernosometric parameters before and after the operation, and neither were there any other severe postoperative complications. The grafts had mild inflammatory reaction and fibrosis with apparent reformation of the tunica albuginea over the patch site. Conclusion: The augmentation phalloplasty technique with bilateral autogenous tunica vaginalis grafts was proved to be effective and reliable with few complications, particularly conspicuous in increasing the volume of the erectile tissues during erection.