CO2 laser welding versus conventional microsuture repair in patch-graft urethroplasty

This study evaluates the repair of urethral tissue using microsurgery and a combination of laser welding techniques. Using the rat as a model, a patch-graft urethroplasty was performed with either conventional microsuture repair, laser-assisted microsuture repair, or laser-assisted microsuture with protein solder. Repairs were assessed at various time periods (days 0, 1, 7, and 21). Analysis of success rate, bursting strength, histology, and operative time were completed. The laser with protein solder had the highest success rate at each time period and demonstrated advanced healing with the least amount of inflammation. Operative time was decreased by 30 percent using the laser. In conclusion, the laser solder repair was significantly better than either laser alone or conventional microsutures.