Anesthesiology
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Randomized Controlled Trial Comparative Study
Continuous femoral nerve blocks: decreasing local anesthetic concentration to minimize quadriceps femoris weakness.
Whether decreasing the local anesthetic concentration during a continuous femoral nerve block results in less quadriceps weakness remains unknown. ⋯ For continuous femoral nerve blocks, we found no evidence that local anesthetic concentration and volume influence block characteristics, suggesting that local anesthetic dose (mass) is the primary determinant of perineural infusion effects.