Patch grafting the renal pelvis and ureteropelvic junction - A comparative study in pigs using lyophilized dura mater and free peritoneum

P. L. Royce, P. E. Zimmern, J. B. deKernion

Research output: Contribution to journalArticle

12 Scopus citations


Lyophilized dura mater (Lyodura) and autogenous free peritoneum were compared in the replacement of the partially resected renal pelvis and ureteropelvic junction (UPJ) in the pig. The Lyodura and peritoneum grafts were both progressively resorbed, and replaced by fibroblasts which formed a mature scar lined by transitional epithelium, but without smooth muscle regeneration. Lyodura was found to be superior to free peritoneum with a longer time before resorption of the graft, less intense inflammatory reaction, absence of metaplastic bone formation, less risk of urine leak and greater ease of surgical manipulation.

Original languageEnglish (US)
Pages (from-to)37-41
Number of pages5
JournalUrological Research
Issue number1
StatePublished - Jan 1 1988



  • Lyodura
  • Peritoneum
  • Pigs
  • Pyeloplasty

ASJC Scopus subject areas

  • Urology

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