Kidney Transplant Surgical Technique

Kidney transplantation is a heterotopic operation in which a donor kidney is placed in the recipient's iliac fossa and revascularized by anastomosing its renal vessels to the iliac vessels, with the donor ureter implanted into the bladder. The native kidneys are usually left in place. It was the first solid-organ transplant to achieve durable success and remains the most frequently performed transplant procedure.

Definition

Kidney transplant surgical technique is the heterotopic implantation of a renal allograft into the recipient iliac fossa, comprising an arterial anastomosis (typically renal artery to external or internal iliac artery), a venous anastomosis (renal vein to external iliac vein), and ureteroneocystostomy to restore urinary drainage to the bladder.

Scope

The topic covers the standard recipient operation — extraperitoneal exposure of the iliac vessels, vascular anastomoses, and ureteric reconstruction — together with common technical variants. Donor nephrectomy, recipient selection, immunosuppression, and rejection are treated in neighbouring entries.

Core questions

• Where is the graft placed and to which vessels is it anastomosed?
• How is urinary continuity re-established between the donor ureter and recipient bladder?
• What role does a ureteric stent play, and when is it used?
• How do living-donor and deceased-donor grafts differ technically?

Key concepts

• Iliac fossa placement (heterotopic graft)
• Renal artery to iliac artery anastomosis
• Renal vein to iliac vein anastomosis
• Extravesical ureteroneocystostomy (Lich-Gregoir)
• Ureteric stenting
• Carrel patch on the donor artery
• Extraperitoneal exposure

Mechanisms

The graft is placed extraperitoneally in the iliac fossa. The renal artery is anastomosed to the external or internal iliac artery — often using a Carrel aortic patch when a deceased-donor kidney is procured — and the renal vein to the external iliac vein, restoring blood flow on reperfusion. Urinary continuity is then re-established by implanting the donor ureter into the bladder, most commonly by an extravesical ureteroneocystostomy that creates a short antireflux tunnel. A ureteric stent may be placed across this anastomosis; a Cochrane review found that routine intraoperative stenting reduces major urological complications such as leak and obstruction (wilson-2013). The contralateral or original iliac fossa and the choice of living versus deceased donor influence vessel selection and back-table preparation (watson-dark-2012).

Clinical relevance

Kidney transplantation restores renal function in eligible patients with kidney failure, and its operative technique determines vascular and urological outcomes such as graft thrombosis, urine leak, and ureteric stricture. This entry describes the operation for educational reference and does not provide surgical instructions or individualized clinical guidance.

Epidemiology

Kidney transplantation is the most commonly performed solid-organ transplant worldwide. Grafts are obtained from both living and deceased donors; living-donor kidneys generally have shorter cold ischemia times because procurement and implantation can be coordinated (watson-dark-2012).

Evidence & guidelines

The technique descends from Murray's identical-twin series, which demonstrated durable function of an iliac-fossa renal graft (murray-1958). Contemporary practice and its historical evolution are summarized by Watson and Dark (watson-dark-2012), and a Cochrane systematic review supports routine intraoperative ureteric stenting to reduce urological complications (wilson-2013).

History

Early twentieth-century vascular-anastomosis work by Alexis Carrel laid the groundwork, and the iliac-fossa extraperitoneal approach was developed by Kuss and others in the 1950s. Murray's 1954 identical-twin transplant, reported in his seven-pair series, was the first to achieve sustained graft function and established the operation's template (murray-1958).

Debates

Should ureteric stents be placed routinely?

Routine intraoperative stenting reduces major urological complications but introduces stent-related morbidity and the need for later removal; a Cochrane review supports routine use while noting these trade-offs.

Key figures

• Joseph E. Murray
• John P. Merrill
• Rene Kuss

Seminal works

• murray-1958

Frequently asked questions

Are the patient's own kidneys removed during a transplant?

Usually not. The donor kidney is placed in the iliac fossa (a heterotopic position) while the native kidneys are typically left in place; they are removed only for specific indications.

Why is the new kidney placed in the pelvis rather than where the kidneys normally sit?

The iliac fossa offers convenient access to the iliac artery and vein for the vascular anastomoses and to the bladder for ureteric implantation, and the extraperitoneal location makes the graft easier to monitor and biopsy.