What is this study studying for total knee arthroplasty recovery?

This study is comparing two types of nerve blocks, femoral triangle block and adductor canal block, to see how they affect early quadriceps muscle function after knee replacement surgery. Researchers want to know if one block causes more muscle weakness than the other while managing pain effectively. The study is sponsored by Social Medical Corporation Daiyukai.

Who may be eligible for this total knee arthroplasty clinical trial?

Adults aged 20 years and older scheduled for primary unilateral total knee arthroplasty may be eligible. Participants must be able to walk independently before surgery and have an ASA physical status of I to III. People with allergies to local anesthetics or certain neurological conditions may not qualify. Please review eligibility criteria for more details.

Is there any cost to participate in this total knee arthroplasty clinical trial?

Study-related care, including the study procedures and all trial visits, is provided at no cost. Personal travel expenses may vary and are not guaranteed to be covered. Participants can expect to receive care and assessments without having to pay for the study treatments.

Actively Recruiting

Phase Not Applicable

Age: 20Years +

All Genders

ID07524387

Comparing Femoral Triangle Block and Adductor Canal Block Effects on Early Quadriceps Function After Total Knee Replacement

Led by Social Medical Corporation Daiyukai · Updated on 2026-04-16

136

Participants Needed

Research Sites

2 weeks

Total Duration

AI-Summary

What this Trial Is About

Researchers are investigating the effects of two types of nerve blocksfemoral triangle block FTB and adductor canal block ACBon early quadriceps muscle function after total knee arthroplasty TKA. The study aims to find out if FTB leads to more early quadriceps weakness compared to ACB when both are used with a standardized multimodal pain relief plan. This randomized, double-blind trial involves adult patients undergoing primary unilateral TKA to better understand postoperative motor function and pain management.

CONDITIONS

Brief Title

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

Who Can Participate

Age: 20Years +

All Genders

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 use of regional anesthesia as part of standard perioperative care
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 anesthetic agents 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 participation or assessment
History of revision knee arthroplasty on the operative side
Severe preoperative quadriceps weakness preventing reliable baseline strength assessment
Any condition the investigator deems makes participation inappropriate

Research Team

Norihiro Sakai, MD, PhD

Tomohiro Michino, MD, PhD

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Comparing Femoral Triangle Block and Adductor Canal Block Effects on Early Quadriceps Function After Total Knee Replacement

On this page

AI-Summary

What this Trial Is About

Brief Title

Who Can Participate

Eligibility Criteria

Research Team

Not the Right Trial for You?

On this page

Who Can Participate

Eligibility Criteria