Comparison of Median, Intermediate and Lateral Approach to Sacral Erector Spinae Plane Block: a Cadaveric and Radiologic Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 4
- 试验地点
- 1
- 主要终点
- Completion of computed tomography of 4 cadavers
研究概览
简要总结
The goal of this cadaveric study is to learn about the distribution of contrast agent in ultrasound-guided sacral ESPB. The main questions it aims to answer are
- Which nerves are affected by this block.
- Which approach is the best for optimal analgesia in human
详细描述
4 embalmed cadavers will be divided into groups of 2 and sacral ESPB will be made with 2 different methods. The cadavers will be removed from the solution 48 hours before and will be placed in the prone position, there will be no history of trauma or surgery in the sacral region of the cadavers, and no dissection will be performed from the sacral regions.
In the median approach, the probe will be placed on the cadaver, which was previously placed in the prone position, using a 12-18 megahertz high-frequency linear probe with ultrasound to form a right angle to the sacral crest. After being placed parallel to the sacrum and observing the median crest, a 50 mm echogenic needle will be inserted by advancing the implant towards the second sacral level. After touching the crest, the distribution will be observed by retreating 1mm and making 1 cc of serum physiologic. Then all 40 ml of methylene blue and radiocontrast solution will be given. In the intermediate approach; From the second sacral level, 20 ml of red acrylic dye and a solution containing radiocontrast will be given to the right and left by entering the sulcus between the median and intermedian crests with the same technique, using the same technique, under the guidance of ultrasound. After the procedure, sacral tomography will be performed on the cadavers. The spread of radiocontrast material will be observed and their reconstruction will be performed. Later, anatomical dissection will be performed on the cadavers and the spread of the dyes given will be observed. Which of the sacral intervention methods is more effective in clinical practice will be evaluated.
Estimated durations of the study;
- Removing the cadavers from the solution 48 hours before, performing the block, going to the radiology and performing the CT scan, coming to the anatomy laboratory and performing the dissection: 3 days
- Reconstruction and interpretation of radiology images: 1 week
- Interpretation of anatomical dissection: 1 week
- Evaluation and writing of the study: 1 month
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Embalmed cadaver
排除标准
- •None of the cadavers had a history of trauma or surgery in the sacral region
研究组 & 干预措施
median approach
Sacral ESPB performed from the median sacral crest of 2.level of sacrum.
干预措施: Sacral ESPB (Procedure)
intermediate approach
Sacral ESPB performed bilateral and between the median and intermediate sacral crest of 2.level of sacrum.
干预措施: Sacral ESPB (Procedure)
结局指标
主要结局
Completion of computed tomography of 4 cadavers
时间窗: 3 day
Computed tomography will be taken in 4 cadavers to observe the distribution of the radiocontrast material given to 2 different regions.
Completion of blocks for 4 cadavers
时间窗: 3 days
Ultrasound guided sacral ESPB will be performed on 4 cadavers in 2 different approaches
次要结局
- Completion of dissection of 4 cadavers(3 days)
研究者
Bilge Olgun Keles
Assistant professor
Giresun University