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Prof. Dr. Ali Avanoğlu
Hypospadias Surgery • Surgery in Children

Midshaft (Mid-Shaft) Hypospadias Surgery

Midshaft is the transition zone between distal and proximal. The decision isn't made by a single rule — it's made case by case, based on the quality of the urethral plate and the degree of curvature.

Who this is forThose whose opening is at the middle of the shaft
Reading≈2 min
ByProf. Dr. Ali AvanoğluUpdated
This page is part of hypospadias surgery.Read the full treatment overview on the hub page
where it should beMidshaft
underside view
In brief4 madde
  • Why a transition zone?: The channel built in this group is noticeably longer than in distal cases.
  • Options: TIP (Snodgrass) repair — applicable in most midshaft cases.
  • The decision is made on the table: Go in knowing the final decision is made during surgery.
  • Process: Surgery takes 2–3 hours, usually with one night in hospital.
01

Why a transition zone?

The channel built in this group is noticeably longer than in distal cases. As the channel gets longer, the area that needs monitoring for both fistula and stricture grows — this is why the protective tissue layer covering the new channel is more critical here than in distal repairs.

  • On the other hand, if curvature is minimal and the groove is usable, the channel can be built on the existing plate and the repair completed in a single session.
02

Options

  • TIP (Snodgrass) repair — applicable in most midshaft cases.
  • Graft-augmented TIP (Snodgraft) — if the plate is narrow, it is widened with a small patch taken from the foreskin or oral mucosa.
  • Onlay island flap — a flap prepared from the foreskin is placed over the plate to complete the channel.
  • Double-layer dartos covering — in longer channel repairs, the protective layer is planned as two layers instead of one.
03

The decision is made on the table

Go in knowing the final decision is made during surgery. If the plate turns out thinner than expected once the skin is opened, or if curvature exceeds 30 degrees on the artificial erection test, the surgeon may switch to a staged plan. Both possibilities should be discussed during the consent process.

04

Process

  • Surgery takes 2–3 hours, usually with one night in hospital.
  • The catheter stays in for 7–10 days.
  • Swelling and bruising are more pronounced than in distal repairs; they subside over 3–4 weeks.
  • Stream quality and the width of the opening are assessed at the 3-month mark.
Related videos
Full guide (19) →
Frequently asked questions
What happens if the plate turns out to be inadequate?
There are two options: widen the plate with a small graft and complete it in the same session, or remove the plate and switch to a staged repair. Which one is used is decided on the table based on the condition of the tissue.
Is this group closer to distal or proximal?
If there's no curvature and the plate is sound, the course is closer to distal. If there is significant curvature or an inadequate plate, the picture moves closer to the proximal group.
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