Role of penile biometric characteristics on surgical outcome of hypospadias repair

To assess influence of penile biometric characteristics on surgical outcome of tubularized incised plate (TIP) repair for hypospadias. We prospectively studied 42 boys with distal hypospadias that underwent TIP urethroplasty. Biometric assessment prior to surgery consisted of classifying glans shape, urethral plate (UP) length and width, prepuce vascularization and penile size, using a caliper rule, according to previous definitions. Surgical outcome was assessed according to the occurrence of dehiscence, fistula or urethral stricture. There was no statistical difference among groups concerning postoperative complications. Glans shape: grooved (24/57 %), shallow (9/21 %) and conical (9/21 %). UP width: < 10 mm (26/62 %) and a parts per thousand yen10 mm (16/38 %). UP length was evaluated in 29 patients: < 10 mm in (12/41 %) and a parts per thousand yen10 mm (17/59 %). Prepuce vascularization: one predominant blood vessel (17/41 %), two predominant blood vessels (8/19 %), H-like form with communication between two well-developed blood vessels (6/14 %) and net-like form with no predominant blood vessels (11/26 %). Penile size was measured in 28 patients under 50th percentile (25/89 %). Glans shape, UP width, UP length, prepuce vascularization and penile size do not significantly affect the complication rate of TIP repair in distal hypospadias. Most of the patients with distal hypospadias presented with penile size under mean length for age suggesting some form of mild hypogonadism.