Time to anaesthesia similar between proximal & distal adductor canal block insertion sites .
This report has been verified
by one or more authors of the
original publication.
A randomized comparison of proximal and distal ultrasound-guided adductor canal catheter insertion sites for knee arthroplasty
J Ultrasound Med. 2014 Sep;33(9):1653-6250 patients undergoing primary unilateral knee arthroplasty with an adductor canal block were randomized to either proximal or distal adductor canal catheter insertion. The purpose was to compare time to anaesthesia onset between the two insertion sites, and the effect each had on motor block. The results demonstrated no significant differences between groups in time to onset of sensory anaesthesia. A number of patients in both groups demonstrated at partial or complete motor block, with quadriceps weakness recorded in 19/25 of the proximal group and 16/24 in the distal group.
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