What Neural Elements of The Brachial Plexus Make Up The “Stoplight Sign” at The Interscalene Groove ? : A Volunteer Study

Not Applicable

• Conditions: The neural element that make up the “stoplight sign” at the interscalene groove Any variation in the anatomy of the C5, C6, C7 nerve root; Stoplight sign; Interscalene groove; Neural element; Intra- root splitting; Bifid nerve root; Interscalene Brachial plexus

• Registration Number: TCTR20190720003
• Lead Sponsor: Ramathibodi Hospital

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2019-07-20
• Study Completion: 2019-08-30
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Pending (Not yet recruiting)
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

healthy young volunteers both male and female, who are between 20-45 years of age, of American Society of Anesthesiologist physical status 1 to 2.

Exclusion Criteria

Subjects with a body mass index > 35 kg.m-2
Clinically obvious C-spine deformities or limited range of motion of the neck.
History of surgery at the neck or supraclavicular area.

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Determine the neural element that make up the “stoplight sign” at the interscalene groove after ultrasound examination systematic ultrasound examination

Secondary Outcome Measures

Name	Time	Method
The cross sectional area and diameter of the C5, C6, C7 nerve root after ultrasound examination systematic ultrasound examination ,The presence of intra-root splitting after ultrasound examination systematic ultrasound examination ,The course of C5, C6, C7 nerve root after ultrasound examination systematic ultrasound examination ,Any variation in the anatomy of the C5, C6, C7 nerve root after ultrasound examination systematic ultrasound examination