Migration rate of proximal adductor canal block catheters placed parallel versus perpendicular to the nerve after total knee arthroplasty: a randomized controlled study.

Background: Perineural catheters placed parallel to the nerve course are reported to have lower migration rates than those placed perpendicular to it. However, catheter migration rates for a continuous adductor canal block (ACB) remain unknown. This study compared postoperative migration rates of proximal ACB catheters placed parallel and perpendicular to the saphenous nerve.

A case report of seizure during emergence from general anesthesia after lumbar spinal surgery-common cases can develop potentially life-threatening adverse intracranial events.

Background: Adverse intracranial events after spinal surgery were related with intracranial hypotension due to surgical injury of dura mater.

Case Presentation: A 72-year-old woman received posterior lumbar interbody fusion under general anesthesia. Immediately after the patient was transitioned to the supine position and muscular relaxants were reversed, she developed generalized seizure.