The effect of 3-in-1 femoral nerve block with ropivacaine 0.375% on postoperative morphine consumption in elderly patients after total knee replacement surgery.

摘要: Total knee replacement (TKR) is one of the most painful orthopedic surgical procedures. This study was aimed to investigate effect a single-shot preoperative 3-in-1 femoral nerve block on postoperative pain by using 0.375% ropivacaine, and consumption morphine PCA following TKR surgery. Side effects were also evaluated in this setting. 34 patients included study. Group R (n=17) received (FNB) with 40 mll ropivacaine 0.375%. S only 2 mg loading dose 30 minutes before end surgery, no performed. Both groups general anesthesia postoperatively had pump programmed deliver morphine. VAS scores at rest, adverse recorded. Two excluded from each group. Pain 0, 1, 2, 3, 4, 6, 8 hours significantly lower group resting position (p<0.05). experienced recovery room state lasted after surgery while reached acceptable score (VAS ? 3) hour leaving room. The requirement 12, 18, 24, 48 hr (p<0.001). Preoperative FNB cc provides better scores, less fewer side elderly when compared block.