✦ UPJ Obstruction Treatment

Laparoscopic Dismembered Pyeloplasty (Anderson-Hynes)

Q: How does laparoscopic pyeloplasty compare to robotic?

Success rates are equivalent; robotic offers enhanced dexterity for suturing in the confined retroperitoneal space; both achieve >95% success.

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

The DJ stent is removed 4–6 weeks after surgery as a brief outpatient cystoscopic procedure under local anaesthesia. Your consultant will provide specific guidance based on your individual clinical situation and recovery.

Q: How is success confirmed after pyeloplasty?

A MAG3 renogram or ultrasound at 3 months confirms resolution of obstruction and recovery of renal drainage. Your consultant will provide specific guidance based on your individual clinical situation and recovery.

Laparoscopic Gold Standard Repair of Ureteropelvic Junction Obstruction

120–180 min PROCEDURE

2–3 Days HOSPITAL STAY

>95% SUCCESS RATE

2–3 Weeks RECOVERY

What is Laparoscopic Dismembered Pyeloplasty (Anderson-Hynes)?

Laparoscopic Dismembered Pyeloplasty using the Anderson-Hynes technique is the minimally invasive gold standard for UPJ obstruction. The obstructed segment is excised, crossing lower-pole vessels are transposed anterior to the repair, the renal pelvis is trimmed and spatulated, and a tension-free dependent anastomosis is performed laparoscopically. It achieves the same excellent outcomes as open pyeloplasty with smaller incisions and faster recovery. The procedure is performed under general or spinal anaesthesia with a hospital stay of 2–3 Days. Success rates reach >95% in appropriately selected patients at experienced centres.

Patients with symptomatic UPJ obstruction from hydronephrosis, flank pain, recurrent UTIs, stones, or declining renal function suitable for minimally invasive repair. Patients must be adequately fit for anaesthesia and free from active systemic infection before proceeding.

How the Procedure Works

Port Placement

Three to four laparoscopic ports placed; retroperitoneal or transperitoneal approach selected.

UPJ Identification

Ureteropelvic junction identified; crossing lower-pole vessel identified and noted.

Obstructed Segment Excision

Obstructed UPJ segment excised; renal pelvis trimmed and spatulated.

Vessel Transposition

Crossing vessel transposed anterior to the anastomosis if present.

Anastomosis & Stent

Tension-free dependent anastomosis performed with absorbable sutures; DJ stent placed.

Outcomes

120–180 minDURATION

2–3 DaysHOSPITAL STAY

>95%SUCCESS RATE

2–3 WeeksFULL RECOVERY

Who Needs This Treatment?

→Minimally invasive approach with equivalent success to open pyeloplasty (>95%).
→Excises the entire obstructed UPJ segment rather than just incising it.
→Crossing vessels transposed anterior to the repair preventing recurrence.
→Smaller incisions and less post-operative pain than open surgery.
→Hospital stay of 2–3 days with return to work within 2–3 weeks.
→Preferred approach for primary UPJ obstruction in experienced centres.

"Laparoscopic Anderson-Hynes pyeloplasty is our procedure of choice for UPJ obstruction. Over 95% success through small ports — the minimally invasive approach has not compromised outcomes even slightly."

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

Common Questions

Frequently Asked

How does laparoscopic pyeloplasty compare to robotic?+

How long does the DJ stent stay after pyeloplasty?+

How is success confirmed after pyeloplasty?+

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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