Compare the Quadriceps Function of Adductor Canal Block Versus Femoral Nerve Block With Electromyography Following Total Knee Arthroplasty

Kaohsiung Medical University Chung-Ho Memorial Hospital80 enrolled

Overview

Adductor canal block and femoral nerve block are the most commonly used nerve blocks for pain control after total knee arthroplasty. The block area for adductor canal is a sensory branch near the knee area, which can potentially reduce the effect of motor blockage of quadriceps muscle. We try to proof adductor canal block can reduce the pain level after surgery effectively and preserve the muscle power of quadriceps muscle. Therefore, the rehabilitation course can be reduced and further lowering the risks of falling and complications.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Enrollment

Conditions

Quadriceps Function Monitored With Electromyography

Interventions

Eligibility

Sex: ALLMin age: 50 YearsMax age: 100 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Age at least 50 years old, not exceed 100 years old * Diagnosed Primary Knee Osteoarthritis * Accepted Total Knee Arthroplasty Exclusion Criteria: * Diagnosed Osteonecrosis * Diagnosed inflammatory Arthritis、Rheumatoid Arthritis * Accepted Revision Total Knee Arthroplasty * Quadriceps muscle rupture, suture or repair history * Neurological or orthopedic disorders that could affect quadriceps muscle power * Allergy to amide anesthetics * Patients who cannot obey or follow directions

Outcomes

Primary Outcomes

Quadriceps muscle Electromyography voltage level change before and after nerve block

surface electromyography level

Time frame: compare difference of Quadriceps muscle Electromyography voltage level 12 weeks after surgery,data were measured post operation day 1, day 2, day 5, 2 weeks, 6 weeks and 12 weeks