Laparoscopic Anderson-Hynes dismembered pyeloplasty in children using needlescopic instrumentation.

The technique of needlescopic Anderson-Hynes dismembered pyeloplasty is discussed. The recent development of robust 3-mm needlescopic instruments designed to perform dismembered pyeloplasties has added a new dimension to laparoscopic suturing and will significantly enhance the ability to perform microanastomosis--the limiting factor preventing many surgeons from performing this technically demanding operation. The use of such fine instrumentation also reduces the size of instrument cannulae necessary, further reducing the postoperative pain and results in spectacular postoperative cosmetic appearance.