The Effect of Leg Position on the Sciatic Nerve on Sonogram

NCT ID: NCT03678961

Last Updated: 2018-12-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

45 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-08-30

Study Completion Date

2018-10-11

Brief Summary

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Little is known about which posture of lower extremity makes it easier to access to the sciatic nerve. In this study, the investigators aimed to identify the most appropriate positioning of the lower extremity during anterior-approach ultrasound-guided sciatic nerve block.

Detailed Description

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Conditions

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Sciatic Nerve Block

Study Design

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Observational Model Type

CASE_CROSSOVER

Study Time Perspective

PROSPECTIVE

Study Groups

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Group N

Neutral position

No interventions assigned to this group

Group E

External rotation of leg by 45 degrees

external rotation of leg

Intervention Type BEHAVIORAL

external rotation of leg by 45 degrees

Group EF45

External rotation of leg by 45 degrees, hip flexion by 45 degrees, and knee flexion by 45 degrees

external rotation of leg

Intervention Type BEHAVIORAL

external rotation of leg by 45 degrees

hip flexion and knee flexion

Intervention Type BEHAVIORAL

hip flexion by 15/45 degrees and knee flexion by 15/45 degrees

Group EF15

External rotation of leg by 45 degrees, hip flexion by 15 degrees, and knee flexion by 15 degrees

external rotation of leg

Intervention Type BEHAVIORAL

external rotation of leg by 45 degrees

hip flexion and knee flexion

Intervention Type BEHAVIORAL

hip flexion by 15/45 degrees and knee flexion by 15/45 degrees

Interventions

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external rotation of leg

external rotation of leg by 45 degrees

Intervention Type BEHAVIORAL

hip flexion and knee flexion

hip flexion by 15/45 degrees and knee flexion by 15/45 degrees

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* ASA PS 1-3
* patients undergoing knee surgery requiring peripheral nerve block

Exclusion Criteria

* patients who refuse to participate in the study
* BMI \> 40 kg/m2
* patients who have congenital abnormality on leg
* patients who have surgery or trauma on hip/knee
* patients who cannot move freely due to the contracture
* patients who are judged ineligible by the medical staff to participate in the study for other reasons
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Asan Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Hajung Kim

Clinical Instructor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Won Uk Koh, M.D., Ph.D.

Role: PRINCIPAL_INVESTIGATOR

University of Ulsan, College of Medicine, Asan Medical Center

Locations

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Asan Medical Center

Seoul, , South Korea

Site Status

Countries

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South Korea

Other Identifiers

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2018-0970

Identifier Type: -

Identifier Source: org_study_id