Evaluation of the Comparative Analgesic Value of Adductor Canal Block Versus Femoral Block Following Total Knee Arthroplasty
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 16
- 试验地点
- 2
- 主要终点
- Pain Intensity as Measured by 11-point Verbal Numeric Rating Scale (NRS-11) for Pain.
研究概览
简要总结
An observational study of the effect of femoral nerve block in addition to an adductor canal block for pain following total knee arthroplasty.
详细描述
Subjects undergoing total knee arthroplasty will receive a preoperative adductor canal block with continuous catheter. Following a standardized general anesthetic for the procedure, subjects will be asked to rate their pain using the NRS-11 pain scale in the recovery room. Once the pain is reported at a 5/10 or above, a femoral nerve block will be performed using either 2% chloroprocaine or saline placebo (randomized). Pain scores are then evaluated over the next 30 minutes by a blinded investigator to determine if the femoral block adds any additional analgesic benefit over an adductor canal block.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Triple (Participant, Care Provider, Outcomes Assessor)
盲法说明
Group allocation by sealed envelope; unblinded investigator prepared syringes of study drug (chloroprocaine vs. saline), which look identical to blinded investigator and assessor.
入排标准
- 年龄范围
- 56 Years 至 85 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients scheduled for elective total knee arthroplasty
- •ASA Physical Status I-III
- •BMI 18-40 kg/m2
排除标准
- •Inability to cooperate with protocol
- •Inability to understand or speak English
- •Allergy to any local anesthetic
- •Chronic opioid consumption/abuse (30 or more morphine mg equivalents/day)
- •Contraindication to adductor canal or femoral nerve block
结局指标
主要结局
Pain Intensity as Measured by 11-point Verbal Numeric Rating Scale (NRS-11) for Pain.
时间窗: Baseline, up to 30 minutes.
Pain intensity prior to intervention and at 5 minute intervals after intervention. The 11-point Numeric Rating Scale quantifies a subject's pain experience from 0/10 (no pain) to 10/10 (worst pain imaginable).
次要结局
未报告次要终点