✦ Hydronephrosis Treatment

Pyeloplasty — Open / Laparoscopic / Robotic

Q: How long does the DJ stent stay after pyeloplasty?

The DJ stent remains for 4–6 weeks to support the anastomosis, then removed as an outpatient cystoscopic procedure. Your consultant will provide specific guidance based on your individual clinical situation and recovery.

Q: Is robotic pyeloplasty better than open?

Outcomes are equivalent; robotic and laparoscopic approaches offer smaller incisions, while open is preferred in complex redo cases. Your consultant will provide specific guidance based on your individual clinical situation and recovery.

Q: How do I know if the pyeloplasty has worked?

A MAG3 renogram or ultrasound at 3–6 months confirms resolution of obstruction and stable or improved kidney function. Your consultant will provide specific guidance based on your individual clinical situation and recovery.

Surgical Reconstruction of the Ureteropelvic Junction to Restore Drainage

120–180 min PROCEDURE

2–4 Days HOSPITAL STAY

>95% SUCCESS RATE

2–4 Weeks RECOVERY

What is Pyeloplasty — Open / Laparoscopic / Robotic?

Pyeloplasty is the gold-standard treatment for UPJ obstruction causing hydronephrosis. The Anderson-Hynes dismembered pyeloplasty excises the obstructed UPJ segment and performs a spatulated reanastomosis of the renal pelvis to the ureter, creating a widely patent dependent drainage point. Performed via open, laparoscopic, or robotic approaches — all achieving success rates above 95%. The procedure is performed under general or spinal anaesthesia with a hospital stay of 2–4 Days. Success rates reach >95% in appropriately selected patients at experienced centres.

Patients with symptomatic UPJ obstruction causing hydronephrosis, flank pain, recurrent UTIs, renal calculi, or declining kidney function. Patients must be adequately fit for anaesthesia and free from active systemic infection before proceeding.

How the Procedure Works

Patient Positioning & Port Placement

For laparoscopic pyeloplasty: patient positioned in modified lateral decubitus; ports placed. For open: flank incision made.

Renal Pelvis Incision

The dilated renal pelvis is incised anteriorly; the ureter is transected just distal to the UPJ obstruction.

Spatulated Anastomosis Planning

The spatulated anastomosis is fashioned: the posterior wall of the renal pelvis is cut to create a dependent drainage point.

Anastomosis Construction

The posterior wall anastomosis is sutured first using continuous 4-0 polyglactin sutures; anterior wall completed.

DJ Stent Placement

A 4.7–6 Fr double-J stent is placed through the anastomosis; drain inserted; ports or wound closed.

Outcomes

120–180 minDURATION

2–4 DaysHOSPITAL STAY

>95%SUCCESS RATE

2–4 WeeksFULL RECOVERY

Who Needs This Treatment?

→Anderson-Hynes dismembered pyeloplasty — excision of the obstructed UPJ — is the gold standard for all UPJ repairs.
→Aberrant lower-pole crossing vessels present in 30–50% of cases are transposed anterior to the anastomosis.
→Robotic-assisted pyeloplasty offers superior dexterity for suturing in the confined retroperitoneal space.
→Post-operative success confirmed by a MAG3 diuretic renogram at 3–6 months.
→The double-J stent placed across the anastomosis is removed at 4–6 weeks as an outpatient procedure.
→Associated with a definite improvement in renal function and elimination of recurrent stone formation.

"Pyeloplasty is one of surgery's great success stories. With over 95% success rates across all approaches, we reliably restore drainage, relieve pain, and protect kidney function for decades."

— — Dr. Vipin Reddy, Consultant Urologist, Andrologist & Renal Transplant Surgeon

Common Questions

Frequently Asked

How long does the DJ stent stay after pyeloplasty?+

Is robotic pyeloplasty better than open?+

How do I know if the pyeloplasty has worked?+

Not sure which treatment is right for you?

Book a consultation with Dr. Vipin Reddy and get a personalised treatment plan.

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