Minimally Invasive Therapy Unit & Endoscopy Training Centre
University Department of Obstetrics and Gynaecology
Royal Free Hospital
Pond Street
London NW3 2QG, UK

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New "Easy Load" Universal Knot Pusher developed at the Royal Free - click here.

A new website for gynaecologists interested in the surgical management of fibroids is now on line.

Roeder slip knot

The Roeder is the first and still one of the most well known slip knots used at laparoscopy. Originally, the Roeder knot was used by ENT surgeons for tonsillectomy. It was adapted for laparoscopy by the pioneering Professor Kurt Semm in the late 1970s.

This video shows a Roeder knot being tied. Note the double half-hitches at the beginning and the end, the latter being used to lock the suture. We usually use vicryl sutures (2/0 to 1) depending on the tissue being sutured.

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There is an inverse relationship between a surgeon's ability and the frequency he asks for muscle relaxant.