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J Urol. 2001 Mar;165(3):761-5.

Strategies for transplantation of cadaveric kidneys with congenital fusion anomalies.

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Section of Renal Transplantation, Department of Urology, Cleveland Clinic Foundation, Omaha, Nebraska,USA.



The dire shortage of cadaveric kidneys has led to a gradual expansion of donor criteria in the transplant community. The use of kidneys with anatomical fusion anomalies is uncommon and has not been well defined in the literature. We evaluated the surgical strategies and postoperative outcomes of transplanting cadaveric kidneys with congenital fusion anomalies.


Three cadaveric kidneys with congenital fusion anomalies were procured and transplanted between May 1994 and November 1999. None of the 3 donors had any significant urological history. All fusion anomalies were identified during the organ procurement process.


Anomalies included 1 L-shaped cross-fused ectopic and 2 horseshoe kidneys. All 3 kidneys were procured en bloc. One horseshoe kidney with a narrow isthmus was split and the 2 kidneys were transplanted into separate recipients, while the other horseshoe kidney was transplanted en bloc into a single recipient. The L-shaped kidney was transplanted en bloc into 1 patient. All transplants were successful with a serum creatinine of 1.1 to 1.9 mg/dl.


To our knowledge we present the initial case of transplantation of an L-shaped kidney. Cadaveric kidneys with congenital fusion anomalies may be transplanted successfully using various individual technical strategies based on the specific renal anatomy. As such, these kidneys may be used to maximize the increasingly inadequate donor pool.

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