The Appropriate Level of Continuous Adductor Canal Block in Patients Undergoing Total Knee Arthroplasty (TKA)
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ClinicalTrials.gov Identifier: NCT04206150 |
Recruitment Status :
Completed
First Posted : December 20, 2019
Last Update Posted : October 15, 2021
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Condition or disease | Intervention/treatment | Phase |
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Degenerative Arthritis | Procedure: the three different sites of continous adductor canal block: the adductor canal catheter is inserted at femoral triangle apex Procedure: the three different sites of continous adductor canal block: the adductor canal catheter is inserted femur length/15*2 cm above the location Procedure: the three different sites of continous adductor canal block: the adductor canal catheter is inserted femur length/15 cm below the location | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 96 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Ninety six patients scheduled for total knee arthroplasty will be randomly divided into the three groups. In group 1, the adductor canal catheter is inserted at femoral triangle apex (the proximal end of the adductor canal). In group 2, the adductor canal catheter is inserted femur length/15*2 cm above the location where the nerve block performed in group 1. In group 3, the adductor canal catheter is inserted femur length/15*2 cm below the location where the nerve block performed in group 1. |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Masking Description: | Investigator and outcomes assessor are blinded to group assignment. |
Primary Purpose: | Treatment |
Official Title: | The Appropriate Level of Continuous Adductor Canal Block in Patients Undergoing Total Knee Arthroplasty (TKA) |
Actual Study Start Date : | April 2, 2020 |
Actual Primary Completion Date : | July 16, 2021 |
Actual Study Completion Date : | July 17, 2021 |

Arm | Intervention/treatment |
---|---|
Active Comparator: Group 1(femoral triangle apex)
the adductor canal catheter is inserted at femoral triangle apex (the proximal end of the adductor canal)
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Procedure: the three different sites of continous adductor canal block: the adductor canal catheter is inserted at femoral triangle apex
In group 1, the adductor canal catheter is inserted at femoral triangle apex (the proximal end of the adductor canal). |
Active Comparator: Group 2(femur length/15*2 cm above)
the adductor canal catheter is inserted femur length/15*2 cm above the location where the nerve block performed in group 1
|
Procedure: the three different sites of continous adductor canal block: the adductor canal catheter is inserted femur length/15*2 cm above the location
In group 2, the adductor canal catheter is inserted femur length/15*2 cm above the location where the nerve block performed in group 1. |
Active Comparator: Group 3(femur length/15 cm below)
the adductor canal catheter is inserted femur length/15cm below the location where the nerve block performed in group 1.
|
Procedure: the three different sites of continous adductor canal block: the adductor canal catheter is inserted femur length/15 cm below the location
In group 3, the adductor canal catheter is inserted femur length/15 cm below the location where the nerve block performed in group 1. |
- Pain : Visual Analogue Scale (VAS) for pain [ Time Frame: Baseline (Before surgery) ]The visual analog scale(VAS) is a validated, subjective measure for acute and chronic pain. Scores are recorded by making a handwritten mark on a 10-cm line that represents a continuum between "no pain" (0) and "worst pain." (10). The ends are defined as the extreme limits of the parameter to be measured(symptom,pain,health) orientated from the left(0, worst) to the right(10, best).
- Pain : Visual Analogue Scale (VAS) for pain [ Time Frame: postoperative day 1 ]The visual analog scale(VAS) is a validated, subjective measure for acute and chronic pain. Scores are recorded by making a handwritten mark on a 10-cm line that represents a continuum between "no pain" (0) and "worst pain." (10). The ends are defined as the extreme limits of the parameter to be measured(symptom,pain,health) orientated from the left(0, worst) to the right(10, best).
- Pain : Visual Analogue Scale (VAS) for pain [ Time Frame: postoperative day 2 ]The visual analog scale(VAS) is a validated, subjective measure for acute and chronic pain. Scores are recorded by making a handwritten mark on a 10-cm line that represents a continuum between "no pain" (0) and "worst pain." (10). The ends are defined as the extreme limits of the parameter to be measured(symptom,pain,health) orientated from the left(0, worst) to the right(10, best).
- muscle strength [ Time Frame: Baseline (Before surgery) ]Quadriceps strength of both legs was assessed by placing the dynamometer on the anterior of the ankle, between the malleoli.
- muscle strength [ Time Frame: postoperative day 1 ]Quadriceps strength of both legs was assessed by placing the dynamometer on the anterior of the ankle, between the malleoli.
- muscle strength [ Time Frame: postoperative day 2 ]Quadriceps strength of both legs was assessed by placing the dynamometer on the anterior of the ankle, between the malleoli.

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Ages Eligible for Study: | 50 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- 1. Patients undergoing total knee arthroplasty
Exclusion Criteria:
- 1. Patients who have infection or had surgery on the thigh
- 2. The subject is a foreigner or illiterate
- 3. Patients who have cognitive dysfunction

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04206150
Korea, Republic of | |
Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institue, Yonsei Universiy College of Medicine | |
Seoul, Korea, Republic of, 03722 |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Yonsei University |
ClinicalTrials.gov Identifier: | NCT04206150 |
Other Study ID Numbers: |
4-2019-1038 |
First Posted: | December 20, 2019 Key Record Dates |
Last Update Posted: | October 15, 2021 |
Last Verified: | October 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Osteoarthritis Arthritis Joint Diseases Musculoskeletal Diseases Rheumatic Diseases |