Gadsden, Jeff C Lumbar plexus block using high-pressure injection leads to contralateral and epidural spread. [electronic resource] - Anesthesiology Oct 2008 - 683-8 p. digital Publication Type: Journal Article; Randomized Controlled Trial ISSN: 1528-1175 Standard No.: 10.1097/ALN.0b013e31818631a7 doi Subjects--Topical Terms: AdolescentAdultAgedFemaleHumansLumbar VertebraeMaleMepivacaine--administration & dosageMiddle AgedNerve Block--methodsPressure