COMPARATIVE STUDY BETWEEN ULTRASOUND AND NERVE STIMULATOR GUIDED SCIATIC NERVE BLOCK THROUGH THE ANTERIOR APPROACH.

Introduction: The aim of the current study was to compare block of the sciatic nerve through the anterior approach by two methods, namely, the nerve-stimulator guided and ultrasound-guided, with or without nerve stimulation, with regard to the ease of performance, reliability and safety of this approach.

Patients And Methods: 36 adult patients were randomly allocated equally into one of 2 main groups: "Nerve Stimulator-Guided Group (NSG)" where the nerve was located by nerve stimulator only and "Ultrasound guided group (USG)" where the sciatic nerves were blocked by a stimulated needle under guidance of the ultrasound. Assessment of performing each technique, sensory and motor blockades, occurrence of acute systemic toxicity and haematoma formation were compared.

Comparative study between ultrasound determination and clinical assessment of the lumbar interspinous level for spinal anesthesia.

Background: The aim of the current study is to compare the accuracy of the ultrasound (US) versus clinical assessment for determination of the spinal level, using X-ray as the Gold Standard for control.

Methods: 200 patients were randomized into two equal groups. Patients in the Clinical Group were examined by landmarks to assess the Assumed Clinical Tuffier's Line, and then by fluoroscopy to determine the True Clinical Tuffier's Line.