Basic training model for supermicrosurgery: a novel practice card model.

Supermicrosurgery has been developed and reported the anastomosis of vessels with diameters of about 0.5 mm or less. The anastomosis of vessels of about 0.5 mm or less in diameter is technically more difficult than 1.0 mm or larger. This article describes a novel practice card model for acquiring basic supermicrosurgical techniques. A practice card is composed of very small-caliber silicone tubes simulating very small-caliber vessels and a thick paper. The silicone tube external diameters are 0.3, 0.5, or 0.7 mm. The thickness of the tube wall is 0.05 mm. Microsurgeons can easily begin to practice and warm up the supermicrosurgical suturing and anastomosing techniques using this nonvital practice card under a personal desk stereomicroscope in the office and an operating microscope in the operating room. This training model is a simple system for practicing basic supermicrosurgical techniques repeatedly and for warming up before a supermicrosurgical operation. This article also describes basic training regarding its use at high magnifications. This training-based supermicrosurgical skill may become a valuable technique for microsurgeons in many specialties.