Vertical plication: A penile curvature correction technique that reduces the need for urethral plate transection in penoscrotal hypospadias

Abstract

Penile curvature (PC) is a frequent component associated with hypospadias. Medial corporal rotation by interrupted suturing without incising the corporal bodies is well described in patients with epispadias and we think that it is an alternative technique for the management of patients with ventral PC, with or without hypospadias. We describe a PC correction technique which reduces the need for urethral plate transection in penoscrotal hypospadias. The main steps of "vertical plication" technique are following: The Buck's fascia at the maximum point of curvature was incised longitudinally at 12-o'clock position and then dissected from tunica albuginea from medial to lateral on each side. Minimal and precise dissection just enough to allow plication is essential to avoid injury to the neurovascular bundle. No incisions were made through the tunica albuginea. Corporal rotation was performed by approximating with polyester sutures which were placed 5mm apart at and around the point of maximum curvature. Three to 5 sutures were enough for full straightening of PC in our cases. Follow-up range was 1.5-4.5 years (mean: 3 years). 17 patients underwent this technique. 16 of them had a penoscrotal hypospadias and one patient had congenital PC without hypospadias. Full PC correction was achieved in 15 patients and residual curvature below 10° was seen in two patients. We were able to perform single-stage repair in 13 (81,25%) of our penoscrotal hypospadias cases without transection of urethral plate. High recurrence rates were reported in dorsal plication technique when compared to ventral corporal lengthening in patients with PC>30°. In the presence of high grade PC, a penile elongation technique is the preferred option for many authors. However, it requires incision of tunica albuginea. Although the variations of medial corporal rotation to correct ventral PC has been described in the past, they did not gain popularity. This technique allows the surgeon to proceed with single stage repair in patients with proximal hypospadias associated with high grade PC. Narrowing is the only disadvantages of our technique, which can easily be resolved by de-epithelialized flap coverage harvested from foreskin. No parents subjectively reported nor we detected narrowing, recurrence or shortening during follow-up.