Pre- versus postoperative intraarticular application of local anesthetics and opioids versus femoral nerve block in anterior cruciate ligament repair


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Abstract

Background:Often anterior cruciate ligament (ACL) reconstruction is performed as outpatient surgery. This requires a patient friendly postoperative pain management. Three common procedures were compared in this trial.Methods:In a prospective, randomized study the effect of postoperative pain management using preoperative intraarticular anesthesia (0.1 mg Fentanyl + 8 ml Bupivacain 0.5%) was compared with postoperative intraarticular anesthesia (0.1 mg Fentanyl + 8 ml Bupivacain 0.5%) and the femoralis 3-in-1 nerve block (20 ml Prilocain 1% + 20 ml Bupivacain 0.5%) in 157 patients who underwent arthroscopic ACL-plasty.Results:Preoperative intraarticular anesthesia and the femoralis 3-in-1 nerve block showed the same postoperative analgesia and satisfactory pain scores in most cases. Postoperative intraarticular anesthesia was less effective.Conclusion:Our data show that in anterior cruciate ligament reconstruction preoperative intraarticular analgesia with Bupivacain/Fentanyl is satisfactory and equal to the femoralis 3-in-1 nerve block with Bupivacain.

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