Evaluation by Ultrasound Imaging of Local Anesthetic Spread to the Popliteal Fossa During an Adductor Canal Block
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 入组人数
- 30
- 试验地点
- 1
- 主要终点
- Frequency of local anesthetic's spread
研究概览
简要总结
Adductor canal block is an effective analgesic technique for major knee surgery. However, the saphenous nerve block is not sufficient to explain this block's efficiency. It has been shown that adductor canal block can spread to the tibial and fibular nerves through the adductor hiatus. However this diffusion's frequency has never been measured. The main objective of this study is to assess the frequency of the spread of the adductor canal block to the fibular and tibial nerves assessed by ultrasound observation at the popliteal fossa.
详细描述
Adductor canal block is an effective analgesic technique for major knee surgery. The PROSPECT group recommends this block in first intention for locoregional anesthesia in total knee arthroplasty. It has been shown to not be inferior to femoral nerve block in this indication.
The adductor canal block targets the saphenous nerve and, through its spread in the adductor canal, the posterior branch of obturator nerve and the vastus medialis nerve. However these nerves can't fully explain this block's efficiency.
It has been shown that local anesthetic can spread in the adductor canal to the tibial and fibular nerves through the adductor hiatus. However, this spread is inconstant, and no study has evaluated the frequency of this spread yet.
The main objective of this study is to assess the diffusion's frequency of adductor canal block to fibular and tibial nerves through ultrasound observation at the popliteal fossa.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
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
- •patients scheduled for elective knee surgery under general anesthesia
- •in center of Ambroise Paré hospital
- •receiving an adductor canal block
排除标准
- •patients cognitively impaired
- •patients suffering from peripheral neuropathy at the lower limb
- •patients receiving an IPACK block or surgical knee infiltration to complete the adductor canal block analgesia
- •patients who refused to take part in this study
- •pregnant or breastfeeding patients
- •patients under guardianship
- •imprisoned patients
- •patients without any medical insurance
结局指标
主要结局
Frequency of local anesthetic's spread
时间窗: at baseline
The primary outcome is the frequency of local anesthetic's spread to tibial and fibular nerve during an adductor canal block, assessed by ultrasound imaging at the popliteal fossa level. The ultrasound images will be recorded and then assessed by two independent anesthesiologists.
次要结局
- Frequency of altered sensibility(at one and four hours)
- Correlation between local anesthetic spread and clinical alteration(at baseline, hour 1 and hour 4th)