Von Leffern knot
| Von Leffern knot | |
|---|---|
|
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| Type | Sliding knot |
| application | Suture for minimally invasive surgery |
| Ashley No. | |
| Synonyms | Schnelsener knot |
| List of nodes | |
The Von Leffern knot is a surgical knot used in minimally invasive surgery that is tied outside the body (extracorporeal) and pushed to the seam. It finally locks itself.
It is characterized by its special holding power with minimal knot volume. The knot is easy to learn and easy to lay even in darkened areas, as the steps can also be carried out without visualization.
Compared to the three best-known sliding knots in laparoscopy , the Melzer-Buess knot , the Röder knot and the Weston knot , the Von-Leffern knot is significantly lighter and less voluminous with a comparable holding force. This is achieved in that the knot tilts under tension and locks in a form-fitting manner, while the other knots only generate the holding force through friction.
The Von Leffern knot was developed by Ingo von Leffern, chief physician in the department for gynecology and obstetrics at the Albertinen hospital (Hamburg, Schnelsen). In 2001 he wrote his dissertation on this. At first he called the knot the "Schnelsener knot", today it is known as the Von Leffern knot.
Knot
Step 1
step 2
step 3
Tightly knotted knot
Completely tightened sliding knot
