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Completed

NCT Number: NCT04206150

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

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.

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Key information

Conditions

Degenerative Arthritis Arthritis Joint Diseases Musculoskeletal Diseases Osteoarthritis Rheumatic Diseases

Age range

50 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institue, Yonsei Universiy College of Medicine

Seoul, 03722, South Korea

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

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

Procedure

In group 1, the adductor canal catheter is inserted at femoral triangle apex (the proximal end of the adductor canal).

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

Procedure

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.

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

Procedure

In group 3, the adductor canal catheter is inserted femur length/15 cm below the location where the nerve block performed in group 1.

Primary outcomes

  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).

  2. 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).

  3. 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).

Secondary outcomes

  1. 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.

  2. 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.

  3. 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.

Sponsors and collaborators

Lead sponsor

Yonsei University

Other

Registry information

Important dates

Study start
2020
Primary completion
2021
Study completion
2021
First posted
Dec 20, 2019
Registry last updated
Oct 15, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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