Block

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Block

A segment of a town or city surrounded by streets and avenues on at least three sides and usually occupied by buildings, though it may be composed solely of vacant lots. The section of a city enclosed by streets that is described by a map which indicates how a portion of land will be subdivided.

References in periodicals archive ?
Ullensvang et al., "Ultrasound-guided lumbar plexus block in volunteers; a randomized controlled trial," British Journal of Anaesthesia, vol.
Lumbar plexus blocks produce anesthesia of most of the lumbar nerve roots and some of the sacral nerve roots.
[Effects of epidural analgesia and continuous lumbar plexus block on functional rehabilitation after total hip arthroplasty].
Lin, "Importance of half-the-air pressure test in Shamrock lumbar plexus block," European Journal of Anaesthesiology, vol.
A dose-finding study demonstrated that Shamrock method for lumbar plexus block, the archetype of deep regional blocks, "might improve but not eliminate all challenges related to a deep ultrasound-guided nerve block" [27], and complications encountered in their study include local anesthetic systemic toxicity and epidural spread.
Lumbar plexus block and sciatic nerve block given after identifying the landmarks and using a nerve stimulator initially set at 3 and brought down to 0.5.