title: Patch grafting the renal pelvis and ureteropelvic junction. A comparative study in pigs using lyophilized dura mater and free peritoneum.
abstract: Lyophilized dura mater (Lyodura) and autogenous free peritoneum were compared in the replacement of the partially resected renal pelvis and uretero-pelvic 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.
authors.affiliation: Department of Surgery, UCLA School of Medicine.
authors.forename: P L
authors.initials: PL
authors.lastname: Royce
authors.forename: P E
authors.initials: PE
authors.lastname: Zimmern
authors.forename: J B
authors.initials: JB
authors.lastname: deKernion
mesh_terms: D000818:Animals; D003094:Collagen; D005260:Female; D005612:Freeze Drying; D006085:Graft Survival; D007682:Kidney Pelvis / Q000601:surgery*; D008297:Male; D010537:Peritoneum / Q000637:transplantation*; D013552:Swine; D014513:Ureter / Q000601:surgery*
chemical_list: C032281:Lyodura; D003094:Collagen