Comparison of Lateral Decubitus Position Versus Prone Position for Ultrasound Guided Posterior Lumbar Plexus Block and Sciatic Nerve Block
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 200
- 试验地点
- 1
- 主要终点
- Block success defined as loss of sensation to pinprick in each of the lumbar plexus and sciatic nerve distributions when measured 30 min after block performance.
研究概览
简要总结
In the present study, the investigators will test the effect of two position on posterior lumbar plexus and subgluteal or sub-greater trochanter sciatic nerve block.
详细描述
The posterior lumbar plexus block approach was described approximately 30 years ago, using surface anatomical landmarks and a loss-of-resistance technique, but over the years it was almost abandoned for its low successful rate, the huge numbers of adverse effects and its difficulties to be performed. The introduction of the nerve stimulator and ultrasound guided technique in recent years increased the success rate in various peripheral nerve blocks and decreased adverse effects. Ultrasound guided LPB as well as sciatic nerve block technique in a small patient population resulting in a encouraging result, but published clinical data on optimal patient position for ultrasound-guided LPB are limited. We designed this prospective randomized study to compare the success rate, time of performance and complications of ultrasound guided posterior lumbar plexus block as well as subgluteal or sub-greater trochanter sciatic nerve block under lateral decubitus position v.s. prone position.
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 (Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 75 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •18 to 75 years old
- •elective unilateral lower limb surgery
- •ASA Physical Status ASA I-III
排除标准
- •age <18 or >75 year old
- •ASA Physical Status >ASA III
- •abnormal blood coagulation
- •infection near puncture place
- •nerve injury
- •bilateral lower limb surgery
- •patients with lumbar vertebral trauma
- •inability to be properly positioned
- •chronic narcotic therapy or illicit drug use
结局指标
主要结局
Block success defined as loss of sensation to pinprick in each of the lumbar plexus and sciatic nerve distributions when measured 30 min after block performance.
时间窗: 30min
Motor blockade was evaluated by assessing the strength of knee extension (femoral nerve), thigh adduction (obturator nerve), and plantar flexion and dorsiflexion of the ankle (sciatic nerve) 30 min after block performance.
时间窗: 30min
次要结局
- block execution time, depth of the nerve, needle depth, duration of the sensory and motor blockade, complications such as inadvertent needle puncture of epidural space, dural puncture, peritoneal puncture, and kidney or ureter puncture and nerve injury.(within 48h)