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Comparison of Intravascular Uptake Using Touhy or Quincke Needle During Lumbar Medial Branch Block
Ji Hee Hong1, Ki Beom Park2, Sung Won Jung3
1Department of Anesthesiology and Pain Medicine, Keimyung University Dongsan Hospital, Daegu, Korea.
Background:
Inadvertent intravascular injection of local anesthetics can lead to false negative results following a lumbar medial branch block (MBB) performed to diagnose facet joint origin pain. A previous study demonstrated that the type of needle could affect the incidence of intravascular injection rates.
Objectives:
The primary endpoint of this study was to compare the incidence of intravascular injection during lumbar MBB between the Quincke and Touhy needles. The secondary endpoint of this study was to compare the injection time, radiation dose, and patient discomfort during lumbar MBB between the needle types.
Study Design:
Prospective randomized trial.
Setting:
An interventional pain management practice in South Korea.
Methods:
The incidence of intravascular uptake of contrast medium was compared using the Touhy and Quincke needles under real-time fluoroscopy during lumbar MBB. Injection time, radiation dose, and patient discomfort during lumbar MBB were also compared.
Results:
The incidence of intravascular injection was 21.8% (21/102) in the Touhy needle group and 21.2% (22/99) in the Quincke needle group. The odds ratio for the association between the needle types and intravascular injection was 1.1. The injection time, radiation dose, and patient discomfort during lumbar MBB were similar between the Touhy and Quincke needle groups.
Limitations:
This study was performed from L2 to L4 MBB of the unilateral lumbar region. Although the type of needle assigned to the patient was randomized, 3 needles, which are used for 3 levels of MBB, were identical.
Conclusions:
The overall incidence rate of intravascular injection during lumbar MBB was nearly 20% under real-time fluoroscopy for both types of needle. Use of the Touhy needle did not reduce the intravascular injection rate nor the injection time, radiation dose, and patient discomfort.
Insights
This study found no significant difference in intravascular injection rates between Touhy and Quincke needles during lumbar medial branch blocks (MBB). Neither needle type reduced injection time, radiation, or patient discomfort, suggesting needle choice does not impact these outcomes.
Area of Science:
- Pain Management
- Interventional Radiology
- Anesthesiology
Background:
- Inadvertent intravascular injection during lumbar medial branch blocks (MBB) can lead to inaccurate diagnoses of facet joint pain.
- Previous research suggests needle type may influence intravascular injection rates.
Purpose of the Study:
- To compare the incidence of intravascular injection between Quincke and Touhy needles during lumbar MBB.
- To evaluate differences in injection time, radiation dose, and patient discomfort between the two needle types.
Main Methods:
- A prospective randomized trial was conducted in an interventional pain management practice.
- The incidence of intravascular contrast uptake was compared using real-time fluoroscopy during lumbar MBB with Touhy and Quincke needles.
- Injection time, radiation dose, and patient discomfort were also assessed.
Main Results:
- The incidence of intravascular injection was similar between the Touhy needle group (21.8%) and the Quincke needle group (21.2%).
- The odds ratio for intravascular injection associated with needle type was 1.1.
- Injection time, radiation dose, and patient discomfort were comparable between the needle groups.
Conclusions:
- The incidence of intravascular injection during lumbar MBB is nearly 20% regardless of needle type (Touhy vs. Quincke).
- Using Touhy needles did not decrease the rate of intravascular injection, injection time, radiation dose, or patient discomfort.
- Needle selection does not appear to influence the safety or efficiency of lumbar MBB procedures in terms of these parameters.
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