Intraplexus vs Extraplexus Injection of Local Anesthetic for Interscalene Block for Patients Undergoing Arthroscopic Shoulder Surgery
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 208
- 试验地点
- 1
- 主要终点
- Onset of motor blockade
研究概览
简要总结
This is a prospective randomized clinical trial to determine where is the optimal location for local anesthetic injection for ultrasound guided interscalene nerve blocks. The investigators are investigating if local anesthetic deposited between the nerve roots is more effective than local anesthetic deposited in the interscalene groove.
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
- Double (Participant, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •ASA I-II patients who are 18 years and older and who are scheduled for shoulder arthroscopy are eligible for enrollment provided they do not have any of the following
排除标准
- •Exclusion Criteria:
- •chronic pain
- •high preoperative opioid requirement
- •age < 18 years old
- •non-English speaking
- •contraindication to regional anesthesia (allergy to local anesthetics, coagulopathy, severe thrombocytopenia, pre-existing neuropathy in operative limb, infection at puncture site)
- •need for postoperative nerve function monitoring
- •patient refusal
- •pulmonary disease or low baseline oxygen saturation
研究组 & 干预措施
Injection in interscalene groove
Patients undergoing shoulder arthroscopy will have an interscalene nerve block by injection of ropivacaine in the interscalene groove anterior and posterior to the brachial plexus nerves.
干预措施: Interscalene block for shoulder arthroscopy (Procedure)
Injection between nerve roots
Patients undergoing shoulder arthroscopy will have an interscalene nerve block by injection of ropivacaine in the interscalene groove inbetween the C5 and C6 nerve roots.
干预措施: Interscalene block for shoulder arthroscopy (Procedure)
结局指标
主要结局
Onset of motor blockade
时间窗: 1 hour from time of injection
Time to loss of shoulder abduction.
次要结局
- Duration of nerve block(24 hours)
- Incidence of post-operative nausea/vomiting(24 hours)
- Number of needle passes(1 hour)
- Quality of Nerve block(24 hours)
- Patient Satisfaction Score(24 hours)
- Opioid consumption(24 hours)
- Number of paresthesias(1 hour)
- Residual paresthesia(24 hour)