The Appropriate Level of Continuous Adductor Canal Block in Patients Undergoing Total Knee Arthroplasty (TKA)

Yonsei University

Status: Completed

Conditions: Degenerative Arthritis

Treatments: 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 cm below the location; Procedure: the three different sites of continous adductor canal block: the adductor canal catheter is inserted femur length/15*2 cm above the location

Study type: Interventional

Funder types: Other

Identifiers

NCT04206150

4-2019-1038

Details and patient eligibility

About

Adductor canal catheters are being used to provide continuous postoperative analgesia after total knee arthroplasty surgery (TKA). There is much debate about where is the best position of continuous adductor canal block in patients undergoing TKA. Therefore, the investigators aim to compare the postoperative pain at three different level of continuous adductor canal block. 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/15cm below the location where the nerve block performed in group 1.

Enrollment: 96 patients

Sex: All

Ages: 50+ years old

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

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96 participants in 3 patient groups

Group 1(femoral triangle apex)

Active Comparator group

Description:

the adductor canal catheter is inserted at femoral triangle apex (the proximal end of the adductor canal)

Treatment:

Procedure: the three different sites of continous adductor canal block: the adductor canal catheter is inserted at femoral triangle apex

Group 2(femur length/15*2 cm above)

Active Comparator group

Description:

the adductor canal catheter is inserted femur length/15\*2 cm above the location where the nerve block performed in group 1

Treatment:

Procedure: the three different sites of continous adductor canal block: the adductor canal catheter is inserted femur length/15*2 cm above the location

Group 3(femur length/15 cm below)

Active Comparator group

Description:

the adductor canal catheter is inserted femur length/15cm below the location where the nerve block performed in group 1.

Treatment:

Procedure: the three different sites of continous adductor canal block: the adductor canal catheter is inserted femur length/15 cm below the location