Ultrasound Guided Diagnostic Lumbar Medial Branch Blocks
试验速览
- 阶段
- 不适用
- 状态
- 撤回
- 试验地点
- 1
- 主要终点
- Perform a diagnostic lumbar medial branch block using ultrasound guidance, decide if it's practical to perform it, whether patients can tolerate it, can it be performed in a timely manner and the # of needle adjustments required to get target points.
研究概览
简要总结
Can an ultrasound machine be used to perform a diagnostic lumbar medial branch block?
详细描述
The diagnostic lumbar medial branch block for low back and radiating to lower extremity due to lumbar facet joint pain has been traditionally done under fluoroscopic guidance. Some recent studies have shown that the diagnostic lumbar medial branch may alternatively be done under ultrasound guidance. This proposed technique has many advantages, avoid radiation exposure and decrease waiting period for patients to have a pain procedure for low back pain. The time taken, patients' satisfaction score, pain score, the distance the needle tip placed under ultrasound and the ideal position visualized under fluoroscopy will be measured. This study will be done in 2 parts. The first part will determine landmarks for ultrasound. It will involve using 5 cadavers. The second part of the study will involve 25 patients. The needles will be placed initially with ultrasound and then will be verified with C-arm fluoroscopy. Certain criteria will be used to determine its feasibility, for example, less than 20 minutes, less than 5 mm.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Low back and/or leg pain due to possible lumbar facet joint disease
排除标准
- •patient with BMI>35
- •coagulopathy
- •allergy to local anesthetic and ultrasound gel
- •patient unable to fill out post procedure pain diary
研究组 & 干预措施
US-guided lumbar medial branch block
Patients who have low back pain and/or leg pain due to possible lumbar facet joint disease .
干预措施: Lumbar medial branch block (Procedure)
Cadavers for Ultrasound landmarks
Cadavers donated to the Department of Anatomy in McMaster University will be used to determine the landmarks for ultrasound.
干预措施: Ultrasound landmarks (Procedure)
结局指标
主要结局
Perform a diagnostic lumbar medial branch block using ultrasound guidance, decide if it's practical to perform it, whether patients can tolerate it, can it be performed in a timely manner and the # of needle adjustments required to get target points.
时间窗: At time of procedure
次要结局
- Does this procedure correlate with other known procedures, by the distance between the needle tip placed under the ultrasound and the superior medial aspect of transverse process of lumbar spine L3 to S1 visualized under C-arm fluoroscopy.(At time of procedure)