Distal Penile Hypospadias in a child: Single stage repair surgery video using TIP urethroplasty (Snodgrass repair)

Posted on December 4, 2014 by Dr. A K Singal

Distal penile hypospadias is the most common type of hypospadias in children. The urethral opening is located on the underside of penis but in last 1/3 of the penis. While some of the distal hypospadias may have an associated bend in penis called Chordee, most of the distal hypospadias may not have a chordee. There are many types of hypospadias surgery techniques described and the hypospadias surgeon selects the type of repair depending on the anatomy.

The key factors in deciding the repair are:

  1. Severity of Chordee
  2. Severity of hypospadias
  3. Quality of urethral plate
  4. Experience of the surgeon

Snodgrass repair or Tubularised incised plate urethroplasty was described by Dr Warren Snodgrass in 1992 and relies on using the natural tissues of penis on the underside for making a new urinary passage. The basic concept is midline incision of the open urethra from the urinary opening till the head of penis. This expands the urethral plate and allows it rolled into a new urethral tube which can heal very well.

The critical steps are:

  • Degloving of the penis: Incisions are marked preserving the urethral plate and all the penile skin is taken down to correct chordee. This step doesn’t harm the nerve and blood supply of penis as that runs deep inside the penis.
  • Artificial erection test: After applying a tourniquet, artificial erection test is done to check for any curvature (chordee). If there is no curvature, urethroplasty can be started.
  • Chordee correction: In most of the children with distal hypospadias, degloving alone releases the bands on underside of the penis and chordee gets corrected. In some children with hypospadias, chordee correction may be needed. This can be done by either putting a stitch – Tunica albuginea plication or by dividing the urethral plate. Urethral plate division is needed only in patients with severe chordee. But once the urethral plate is divided, TIP urethroplasty can’t be done, other types of repairs have to be planned.
  • Glans wings: Urethral plate is dissected into glans, creating glans wings on either side which are mobilized deep. Midline urethral plate incision (TIP incision) is given to expand the urethral plate and then urethra is closed with a fine absorbable suture such as PDS or vicryl to construct the new tube. The sutures are taken in a subepithelial fashion to invert the mucosa.
  • Second layer coverage: If there is good corpus spongiosum around urethral plate, it is mobilized for spongioplasty to provide security from urethral fistula. We also routinely use Dartos flap to cover the urethroplasty and prevent complications such as urethral fistula.
  • Glansplasty and skin coverage: Glans wings are closed with absorbable sutures and excess foreskin on the top is divided in midline and brought ventrally for complete skin coverage. Midline closure is achieved after excising excess skin so that a pleasing cosmetic outcome can be sought.
  • Dressing and catheter: Though lot surgeons use bulky dressings after hypospadias surgery, we use mostly a Tegaderm (transparent plastic wrap) followed by a soft gauze dressing. The catheter is tied to the glans stitch and allowed to drip urine into the diaper.

Follow-up and care after hypospadias repair surgery with TIP urethroplasty:

Most of the children are discharged by the evening of hypospadias surgery. Antibiotic syrup, pain killers and antispasmodic medicines are given for a week’s time. The parents are taught double diaper care and we call the children for follow-up after 5-7 days for removal of dressing and catheter at the same time. The hypospadias dressing is removed in clinic itself and the parents are advised to apply an antibiotic ointment on the penis for 2-3 weeks. Bath can be given as soon as the dressing is removed. We call for follow-up two weeks after catheter removal and after 3 months if everything is healing well.

About the author:

Dr A.K.Singal is a renowned Pediatric Urologist and Hypospadias Surgeon practicing in western india in area of Mumbai, Navi Mumbai and Thane. He is counted as one of the best hypospadias expert surgeons in the world and every year manages more than 200 kids and adults with hypospadias. He started Hypospadias Foundation in 2008 and Hypospadias Foundation remains the world’s only organisation dedicated to children with Hypospadias. Children from more than 20 countries travel every year to India to consult for hypospadias treatment under his team’s care.

Dr A.K.Singal

Dr A.K.Singal during Hypospadias surgery

He is available at the following clinics : Clinics and Timings for Dr A.K.Singal

Watch video of Distal penile hypospadias repair surgery video by Dr A.K.Singal

Watch video of Single stage repair surgery of severe hypospadias by Dr A.K.Singal

Watch Video of repair of glanular hypospadias with chordee by Dr A.K.Singal

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Posted in About Hypospadias,For Parents and Patients,Hypospadias surgeon India,Hypospadias Surgeon Thane,Hypospadias Surgery,Hypospadias surgery video | Posted by Dr. A K Singal | Posted on December 4, 2014 by Dr. A K Singal | Tagged after hypospadias surgery, best hypospadias hospital, flap repair for hypospadias, hypospadias clinic in india, hypospadias surgeon bhopal, hypospadias surgeon in MP, hypospadias surgeon India, hypospadias surgery india, one stage surgery for hypospadias, onlay flap urethroplasty, onlay island flap hypospadias repair, results of hypospadias, results of scrotal hypospadias surgery, scrotal hypospadias, scrotal hypospadias repair, scrotal hypospadias surgery, severe hypospadias, single stage urethroplasty, urethroplasty for scrotal hypospadias