title: Retroperitoneal approach to lumbosacral defects.
authors.forename: J P
authors.initials: JP
authors.lastname: Cederna
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008161:Lumbosacral Region; D011832:Radiation Injuries / Q000601:surgery*; D013524:Surgical Flaps / Q000379:methods*