Repair of the Canine Ureter

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Abstract
In previous studies1flaps of renal capsule, dissected from one or both surfaces of the kidney, were turned down as pedicle grafts based at the sinus renalis to patch defects created in the upper ureter and pelvis (Fig 1), or to replace the entire upper conduit when bilateral tubular capsule grafts were constructed. The grafted ureters, in the majority of instances, functioned adequately for periods as long as two years, even when contralateral nephrectomy was performed. All of the reconstructed ureters were markedly dilated during the first three weeks following surgery but the majority rapidly regained satisfactory function and form. In these experiments the grafts persisted as well-defined areas of fibrous tissue lined with transitional cell epithelium. Microscopic areas of bone formation were often seen but did not appear to become more prominent nor inimical to conduit function in the long-term survivors. The present study evaluated the potentialities of

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