Boari flap
Pronunciation: bo-AR-ee flap
Bladder tube created from posterior bladder wall to bridge ureteral defects during reconstruction surgery.
Full Definition
The Boari flap is a reconstructive surgical technique that creates a tubularized flap from the posterior bladder wall to bridge gaps in ureteral continuity. This procedure is typically employed when direct ureteroneocystostomy is not feasible due to extensive ureteral loss from trauma, tumor resection, or iatrogenic injury. The flap is fashioned in a spiral or straight configuration from the posterolateral bladder wall and tubularized over a stent to create a neo-ureter. The technique can bridge defects of 10-12 cm and is often combined with psoas hitch to gain additional length. The Boari flap maintains blood supply through the bladder wall's rich vascular network.
Usage
Usage note: Named after Italian surgeon Achille Boari; capitalize as proper noun.
In Context
- "A Boari flap was constructed to bridge the 8 cm ureteral defect following tumor excision." — Operative report
- "The spiraled Boari flap technique provided excellent results with minimal complications." — Surgical outcome study