“Quadrupod” Grip for Handling Supermicrosurgical InstrumentsFunding None.
19 June 2019
23 June 2019
09 August 2019 (online)
With the advent of supermicrosurgery, manipulating vessels smaller than 0.5 mm became practical, and there have been several training models reported for supermicrosurgery.  The tips of supermicrosurgical needle holders and forceps are usually smaller than 0.2 mm to handle 11–0 and 12–0 sutures. However, this requires more demanding technique than microsurgery. Acland and Sabapathy described microsurgery as a battle against unwanted movement. An emphasis on the avoidance of tremor in microsurgery with a well-supported hand position enabling movement of fingertips only was advocated. In the “writing” position, the index and middle fingers control one side of the instrument against the thumb. Most microsurgeons mainly use the three-digit tripod grip in holding the instruments. Lin and Lee modified the writing position. Although conventional microsurgical techniques can provide stability and precision to some degree, manipulation of vessels in supermicrosurgery is still challenging. To meet the needs of supermicrosurgical techniques, a novel method in which the instrument is handled with four fingers is described.
In this technique, the four fingers are used with the index, middle, and ring fingers placed on one side of the needle holder or forceps and thumb on the other side ([Fig. 1]). Thus, placing the instrument on both the ring and middle fingers offers more stable movement. In microsurgical suture, the ring finger mainly moves accompanied by the rest of the three fingers. Since the distance between the tip of the instrument and a point of contact of the ring finger is short, delicate movement is accomplished. This can diminish motion tremor, leading to less damage to vessels and accurate anastomosis.
This “quadrupod” grip offers balanced movement of all the supermicrosurgical instruments—needle holder, forceps, and scissors. In our experience, by using this technique, difficulty in manipulating small vessels is alleviated in supermicrosurgery.
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