The Impact of Leg Movement on the Skin to Adductor Canal Distance: a Potential Cause for Catheter Displacement?
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 40
- 试验地点
- 1
- 主要终点
- Skin to Adductor Canal Distance Disparity
研究概览
简要总结
To control pain after total knee replacement surgery a catheter (tubing) is sometimes inserted into an anatomic space containing nerves that provide sensation to parts of the knee. This space is called the adductor canal.
The catheters often stop working before we remove them for unclear reasons. The investigators think this is because the catheters become dislodged from where it was meant to be. This could be due to repeated movements of the catheter tip brought on by patients contracting their leg muscles when they ambulate or perform physio.
The investigators want to confirm this by measuring the distance from a fixed spot on the patient's thigh to the adductor canal using an ultrasound machine. The leg will be measured in various positions to simulate muscle movements. A significant change in the distance could possibly contribute to catheter dislodgement and result in catheter failure.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Cross Sectional
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 over or equal to the age of 18 years old who can understand the study protocol and are able to give consent
- •Patients must be undergoing a primary total knee arthroplasty with neuraxial anaesthesia
排除标准
- •Patients with an allergy to ultrasound transducer gel or measuring tape
结局指标
主要结局
Skin to Adductor Canal Distance Disparity
时间窗: Measurements will be made on the day of surgery, no other assessment or follow up needed
The largest distance disparity as measured from the 5 different leg positions
次要结局
未报告次要终点
研究者
Marcus Tholin
Principal Investigator
University of British Columbia