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Continuous parasacral sciatic block: a radiographic study.

Elisabeth Gaertner¹, Pablo Lascurain, Cyrille Venet

¹Service d'Anesthésie Réanimation Chirurgicale Hôpital de Hautepierre, Strasbourg, France. e.gaertner@evc.net

Anesthesia and Analgesia

|February 26, 2004

Summary

This summary is machine-generated.

The parasacral sciatic block effectively anesthetizes the sacral plexus for lower limb surgery. This study confirms its high success rate and anatomical accuracy using contrast radiography.

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Published on: March 13, 2012

Area of Science:

Anesthesiology
Regional Anesthesia
Pain Management

Background:

The parasacral sciatic block is utilized for anesthesia of the sacral plexus.
Understanding the spread and reliability of this block is crucial for surgical procedures.

Purpose of the Study:

To determine the spread of local anesthetic injected via a parasacral catheter.
To assess the anatomical placement of parasacral catheters.
To evaluate the extent and reliability of the resulting sciatic blockade.

Main Methods:

87 patients undergoing major lower limb surgery were enrolled.
Radio-opaque contrast dye was injected after catheter placement, followed by radiographic evaluation.
Sensory and motor function evaluations were performed.

Main Results:

99% of catheters were placed in the correct anatomical position.
A mean volume of 21 +/- 3 mL of local anesthetic was administered.
All patients achieved a complete sensory block of the tibial, common peroneal, and posterior cutaneous nerves of the thigh.

Conclusions:

The parasacral sciatic block demonstrates a high success rate in blocking all three major components of the sciatic plexus.
Contrast radiography is a reliable method for confirming correct catheter placement.
This technique offers a low risk of complications for lower limb surgery.