Options for epidural puncture

The advantages and disadvantages of the straight-in method and the side-in method. Direct penetration method: Disadvantages 1. There are many tissues that pass through, so the damage is greater. 2. The "clamping needle" is heavier and may cause dural leakage. 3. Once the ligamentum flavum is calcified, the puncture is extremely difficult. 4. After the catheter is placed, the catheter is easy to be clamped, which makes the injection difficult. Advantages Low incidence of postoperative low back pain. The side entry method is the opposite. But it is not absolute, it depends on your experience and technique. Ru porcelain pen wash

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