Penile Girth Enhancement Using Amniotic Membrane in a Rabbit Model: A stereological study

Area of Science:

• Regenerative Medicine
• Urology
• Biomaterials Science

Background:

• Penile girth enhancement (PGE) seeks to increase penile size.
• Amniotic membrane (AM) is a potential biomaterial for tissue regeneration and augmentation.
• Evaluating novel graft materials for PGE is crucial for improving surgical outcomes.

Purpose of the Study:

• To assess the efficacy of penile girth enhancement (PGE) using amniotic membrane (AM) as a graft in a rabbit model.
• To obtain quantitative histological data on penile structural changes following AM grafting.
• To evaluate the safety and efficacy of AM for penile augmentation.

Main Methods:

• A rabbit model was used, with 20 male rabbits divided into sham surgery and surgery+AM groups.
• Penile length and mid-circumference were measured before and two months post-surgery.
• Stereological methods were employed for quantitative histological analysis of penile tissues.

Main Results:

• The surgery+AM group showed significant increases in penile volume (P<0.03) and diameter (P<0.04).
• Histological analysis revealed significant increases in tunica albuginea and corpora cavernosa volumes in the AM group (P<0.01, P<0.03).
• Increased collagen bundles, muscle fibers, cavernous sinuses, fibroblasts, and smooth muscle cells were observed in the AM group, with no complications.

Conclusions:

• Amniotic membrane (AM) demonstrates promising results as a graft material for penile girth enhancement (PGE).
• The study supports the potential use of AM for future penile augmentation procedures.
• AM grafting is a safe and effective method for increasing penile dimensions in a preclinical model.