A child with Severe Hypospadias – Modified Koyanagi urethroplasty

A 1.5 years old boy was referred to us from Goa with severe hypospadias and chordee, diagnosed as scrotal hypospadias with chordee. The urinary opening was near the end of the scrotum. The penis was also significantly bent (chordee). Since our center specializes in single-stage urethroplasty, we decided to do a single-stage repair, specifically Child Severe Hypospadias Koyanagi urethroplasty.

As a first step, the penis was degloved and the chordee was corrected using 12 O’clock tunica plication. The Koyanagi flaps were raised on either side, going on the top of the penis, and these were then joined together in the midline and finally tubularized using 6-0 PDS over 8 Fr stent.

Severe Hypospadias
Severe Hypospadias
Severe Hypospadias
Severe Hypospadias

Second layer coverage was done with Tunica Vaginalis flap and prepuce on top was split in midline and brought ventrally or coverage of skin. The child did very well and required no further surgery.

A child with Severe Hypospadias – Prepucial tube urethroplasty

Master VM, a 1.5-year-old boy with severe hypospadias, was brought to the clinic from Surat. On examination, the urinary opening was scrotal in location. There was significant chordee also. The final diagnosis thus was Scrotal Hypospadias with chordee. Everywhere else, he had been advised a staged urethroplasty requiring three surgeries. A single-stage urethroplasty was planned for the child with severe hypospadias. As the first step, the penis was degloved to obviate the chordee. Even after degloving, significant chordee was still seen. A 12 O’clock tunica albuginea plication stitch was taken, and the penis was straightened. The chordee correction test showed no residual chordee.

A decision was made to make a tube from the dorsal prepuce and use it as a new urethra by rotating it towards the underside of the penis. This is called a single-stage “prepucial tube urethroplasty,” one of the complex repairs for severe hypospadias.

A child with Severe Hypospadias
A child with Severe Hypospadias
A child with Severe Hypospadias
A child with Severe Hypospadias

A prepucial flap was outlined and was harvested with good dartos blood supply. This was then brought ventrally and sutured to midline tunica albuginea with PDS to lay a base for tubularisation. Then this flap was tubularised over a 7Fr catheter as a new urethra Glans repair and a new urethral opening was made. The prepuce was split in midline and brought towards underside to cover the new urinary passage.

A boy with scrotal hypospadias – Transverse Island Onlay Flap urethroplasty

B.Q., a 7-month-old baby, was brought to our clinic with an abnormal-looking penis and passage of urine from the underside of the penis. On examination, he had a scrotal hypospadias with mild chordee (an abnormality where the penis is bent downwards).

A boy with scrotal hypospadias – Transverse Island Onlay Flap urethroplasty was planned for corrective surgery. This specific case involved a single-stage urethroplasty, for which many different techniques are available. The exact technique in this case was a long transverse island flap urethroplasty.

This is the appropriate age (6-9 months) for such surgeries as the final results are very good both cosmetically and functionally at such a young age. We chose to give two doses of hormones before surgery to improve the outcome after single-stage surgery.

Since this was a very severe hypospadias, the chances of failure were higher. We decided to harvest a tunica vaginalis flap for second-layer coverage of the repair (see pictures). The tunica vaginalis is a covering of the testis and provides good second-layer coverage in such severe cases, improving the outcomes manyfold.

The baby was taken up for surgery and required only a one-day stay in the hospital. The dressing was removed on day 5 and the catheter on day 12. There was no fistula or dehiscence.

At the 3-month follow-up, he had a normal-looking circumcised penis with a urethral opening at the top of the glans.

A boy with scrotal hypospadias

Clinical picture showing a severe scrotal hypospadias

A boy with scrotal hypospadias

After degloving of penis and chordee correction- A long Transverse Island Prepucial Flap has been harvested and is being rotated ventrally c43 c44

A boy with scrotal hypospadias

Tunica Vaginalis Flap harvested and ready to be used for second layer coverage

A boy with scrotal hypospadias

Excellent second layer coverage by tunica vaginalis flap

A boy with severe hypospadias – Transverse Island Onlay Flap urethroplasty

S.J., an 8-month-old baby, was brought to Dr. A.K. Singal’s Hypospadias clinic with an abnormal-looking penis and passage of urine from the underside of the penis, almost near the scrotum. On examination, he was diagnosed with a condition called Penoscrotal Hypospadias with mild chordee (an abnormality where the penis is bent downwards). The baby was planned for a corrective hypospadias surgery called SINGLE STAGE URETHROPLASTY, which can be done by multiple techniques, including the Transverse Island Onlay Flap urethroplasty. This technique is particularly suited for cases like a boy with severe hypospadias.

The exact technique in this case was a long Tranverse Island flap urethroplasty. This is the appropriate age (6-9 months) for such surgeries as the final results are very good both cosmetically and functionally at such a young age.

The baby was taken up for surgery and he required only one day stay in the hospital. The dressing was removed on day5 and the catheter on day12.

At 3 months follow-up he has a normal looking circumcised penis with a urethral opening at the top of the glans

A boy with severe hypospadias

Clinical picture showing a penoscrotal hypospadias

A boy with severe hypospadias

Urethroplasty in progress, chordee correction done

A boy with severe hypospadias

Transverse Island Flap has been mobilized based on dartos tissue and reliable blood supply from the dorsal prepuce.

A boy with severe hypospadias

Completed urethroplasty with Special Silicon catheter for diaper drainage

Facts about Hypospadias

  • Hypospadias is one of the most common pediatric urological anomalies worldwide.
  • The correct age for hypospadias repair surgery is between 6-9 months.
  • Most of the hypospadias can be corrected with a single stage surgery, rarely if the penis is too curved (chordee) or the skin is short or there is an associated disorder of sex development, a two or a three stage hypospdias repair may be required.
  • The success rate of Single Stage Urethroplasty in correctly chosen cases is more than 95%.
  • Most common problems after hypospadias surgery procedure (5%) are infection and formation of a urethral hypospadias fistula requiring a second surgery.

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