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Femoral Triangle Block vs Adductor Canal Block on Early Quadriceps Function After Total Knee Arthroplasty

RecruitingNAAges 20 Years - anyAllSocial Medical Corporation Daiyukai
NCT07524387 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

The goal of this clinical trial is to compare the effects of femoral triangle block (FTB) and adductor canal block (ACB) on early quadriceps function after total knee arthroplasty (TKA). The main question it aims to answer is whether FTB causes more early quadriceps functional impairment than ACB under a standardized multimodal analgesia protocol. Researchers will compare FTB and ACB using a composite binary functional outcome measured 6 hours after block completion. Quadriceps functional impairment is defined as the inability to perform a structured straight leg raise or quadriceps muscle strength \<50% of the preoperative baseline. Participants will be randomly assigned to receive ultrasound-guided FTB or ACB. All participants will also receive a popliteal plexus block and standardized multimodal analgesia.

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📋 Eligibility rules (as published)
Inclusion Criteria: 1. Adult patients (≥ 20 years of age) are scheduled to undergo primary unilateral TKA. 2. American Society of Anesthesiologists (ASA) physical status I-III. 3. Ability to ambulate independently prior to surgery. 4. Ability to understand the study procedures and provide written informed consent. 5. Planned perioperative anesthesia management including regional anesthesia as part of standard clinical care. 6. Ability to extend the knee below 30 degrees preoperatively (no knee extension contracture) Exclusion Criteria: 1. Known allergy or contraindication to local anesthetic agents used in this study. 2. Pre-existing neurological or neuromuscular disorders affect lower limb strength or motor control. 3. Severe cognitive impairment or psychiatric conditions interfere with study participation or assessment. 4. History of revision knee arthroplasty on the operative side. 5. Severe preoperative quadriceps weakness that precludes reliable baseline strength assessment. 6. Any condition deemed by the investigator to make participation inappropriate.
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What it tests

  • Femoral Triangle Block (FTB) Group
  • Adductor Canal Block (ACB) Group
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Where

1 site
Department of Anesthesiology, Daiyukai General Hospital
Ichinomiya, Japan
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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