Actively Recruiting
Femoral Triangle Block vs Adductor Canal Block on Early Quadriceps Function After Total Knee Arthroplasty
Led by Social Medical Corporation Daiyukai · Updated on 2026-04-16
136
Participants Needed
1
Research Sites
154 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
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.
CONDITIONS
Official Title
Femoral Triangle Block vs Adductor Canal Block on Early Quadriceps Function After Total Knee Arthroplasty
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Adult patients 20 years of age or older scheduled for primary unilateral total knee arthroplasty
- American Society of Anesthesiologists (ASA) physical status I to III
- Ability to walk independently before surgery
- Ability to understand study procedures and provide written informed consent
- Planned perioperative anesthesia including regional anesthesia
- Ability to extend the knee below 30 degrees before surgery (no knee extension contracture)
You will not qualify if you...
- Known allergy or contraindication to local anesthetics used in this study
- Pre-existing neurological or neuromuscular disorders affecting lower limb strength or motor control
- Severe cognitive impairment or psychiatric conditions interfering with study participation or assessments
- History of revision knee arthroplasty on the operated side
- Severe preoperative quadriceps weakness preventing reliable strength assessment
- Any condition deemed by the investigator to make participation inappropriate
AI-Screening
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Trial Site Locations
Total: 1 location
1
Department of Anesthesiology, Daiyukai General Hospital
Ichinomiya, Aichi-ken, Japan, 491-8511
Actively Recruiting
Research Team
N
Norihiro Sakai, MD, PhD
CONTACT
T
Tomohiro Michino, MD, PhD
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
DOUBLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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