Case report: postoperative analgesia and preserved motor function with clonidine and buprenorphine via a sciatic perineural catheter.

Two cases of posterolateral corner reconstruction of the knee with postoperative sciatic perineural analgesia using a mixture of clonidine and buprenorphine, are presented. Numeric rating scores for pain with movement were 0-2 out of 10 postoperatively after injection. Gross motor function below the knee was maintained in both cases.