title: Unanticipated Motor Weakness with Ultrasound-Guided Transversalis Fascia Plane Block.
abstract: The transversalis fascia plane block is a relatively new truncal block that targets the iliohypogastric and ilioinguinal nerves. It is gaining wider usage for its reliability to block these nerves as compared with the transversus abdominis plane block. The case presented here appears to be the first time that motor weakness has resulted from this block technique. It is suspected that central and proximal spread of local anesthetic toward the psoas muscle may have resulted in a partial lumbar plexus block.
authors.affiliation: From the *Department of Anesthesia, St. Paul's Hospital, Providence Health Care, Vancouver, British Columbia, Canada; †Department of Orthopedics, St. Paul's Hospital, Providence Health Care, Vancouver, British Columbia, Canada; and ‡Department of Anesthesia, Vancouver General Hospital, Vancouver Coastal Health, Vancouver, British Columbia, Canada.
authors.forename: Steven
authors.initials: S
authors.lastname: Lee
authors.forename: Thomas
authors.initials: T
authors.lastname: Goetz
authors.forename: Angineh
authors.initials: A
authors.lastname: Gharapetian
mesh_terms: D000577:Amides / Q000008:administration & dosage / Q000009:adverse effects; D000779:Anesthetics, Local / Q000008:administration & dosage / Q000009:adverse effects; D005260:Female; D006801:Humans; D008875:Middle Aged; D018908:Muscle Weakness / Q000209:etiology*; D009407:Nerve Block / Q000009:adverse effects* / Q000379:methods*; D016658:Psoas Muscles / Q000187:drug effects*; D000077212:Ropivacaine; D018084:Ultrasonography, Interventional / Q000009:adverse effects / Q000379:methods*
chemical_list: D000577:Amides; D000779:Anesthetics, Local; D000077212:Ropivacaine