Undermining the Epidermis Around the U-Shaped Skin Incision Preserves Thick, Well-Vascularized Tissue that Effectively Prevents Posturethroplasty Complications
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Read the article on jpedsurg.org ↗Article · Sep 2019 · 1 min read
In brief
In brief
This study describes a modified U-shaped incision technique for hypospadias urethroplasty that preserves thicker, well-vascularized tissue by undermining the epidermis 5-7mm around the incision. In 207 patients followed for mean 6.4 years, the modified technique reduced post-operative complications from 15.5% to 0.9% compared to conventional approach.
Written by the GCMD Library team from the article.
Purpose
We modified the U-shaped skin incision technique (UIT) during urethroplasty (UP) to prevent post-UP complications (post-UPC).
Patients and methods
Our modified UIT (mUIT) involves undermining the epidermis for 5–7 mm around the U-shaped incision to create a thicker, better vascularized tissue layer for suturing the neourethra compared with UIT. To prevent injury to underlying connective tissue and avoid compromising blood perfusion, the scalpel should be held at a more slanted angle than is conventional. After the urethral plate is incised in the midline, stay sutures are placed to the middle of the penile shaft as a landmark, and three to five sutures are placed through the thick layer created by undermining. To facilitate mobilizing connective tissue during neourethroplasty, relaxing incisions may be used on the edges of the connective tissue. We compared 207 hypospadias patients who had primary or staged UP using either mUIT (n = 110) or UIT (n = 97) between 2003 and 2017 for incidence of post-UPC.
Results
mUIT had significantly less post-UPC than UIT after a mean follow-up of 6.44 ± 0.26 years after final UP, 1/110 (0.9%) versus 15/97 (15.5%) (p