The epidural block was incomplete, the muscle release was poor, and the block was lateral

These problems often plague anesthesiologists in clinical practice. Multiple epidural punctures may result in epidural adhesion and limited diffusion of local anesthetics, resulting in incomplete block. The catheter can be pulled out a little, and then injected with local anesthetic; Muscle loose is not good mainly for: the patient supine position, spinal nerve anterior heel (motor branch) high, after the root (sensory branch) low, epidural cavity large patients, injected local anesthetics less, can be spread to the horizontal position, sensory nerve block and motor nerve block, resulting in painless but poor muscle loose. You can increase the amount of local anesthetic injected or give the arcuate position. If the epidural catheter is inserted too deep, it can be perforated from the foramen. Local anesthetic injection will block one side of the spinal nerve. If the blocking effect is partial, the catheter can be pulled out 1-2 cm and then injected with local anesthetic.

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