Plasma Concentrations of Bupivacaine After Peri-articular Injection in Total Knee Arthroplasty

NCT ID: NCT01636869

Last Updated: 2014-07-28

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

Clinical Phase

PHASE4

Total Enrollment

43 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-07-31

Study Completion Date

2014-07-31

Brief Summary

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Patients with knee arthroplasty usually performed under spinal anesthesia with a single-shot femoral nerve block and periarticular block, so we would like to know the plasma concentration of bupivacaine in these patients.

Detailed Description

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Conditions

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Serum Bupivacaine Level Periarticular Block Total Knee Arthroplasty

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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bupicavaine

Group Type EXPERIMENTAL

Bupivacaine

Intervention Type DRUG

20 ml of 0.5% bupivacaine for single-shot femoral nerve block will be done at the beginning then another 20 ml of 0.5% bupivacaine for periarticular block will be performed at the end of operation.

Blood sample will be drawn at 60 min after femoral nerve block and before periarticular block, 15, 30, 45, 60 min after periarticular block.

Interventions

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Bupivacaine

20 ml of 0.5% bupivacaine for single-shot femoral nerve block will be done at the beginning then another 20 ml of 0.5% bupivacaine for periarticular block will be performed at the end of operation.

Blood sample will be drawn at 60 min after femoral nerve block and before periarticular block, 15, 30, 45, 60 min after periarticular block.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* age of 30-70 yr
* ASA I-II
* patient undergo total knee arthroplasty under spinal block and single shot femoral nerve block and periarticular block

Exclusion Criteria

* patient's refusal
* allergic to bupivacaine
* body weight less than 50 kg
* liver disease
* heart disease
* coagulopathy
* Hct\<35%
* infection at both groin
Minimum Eligible Age

30 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Mahidol University

OTHER

Sponsor Role lead

Responsible Party

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Saowaphak Lapmahapaisan

instructor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Faculty of Medicine, Siriraj Hospital, Mahidol University

Bangkok, Bangkok, Thailand

Site Status

Countries

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Thailand

Other Identifiers

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010/2555

Identifier Type: -

Identifier Source: org_study_id

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