<unk>  is a regional anesthesia technique that is sometimes employed as an alternative or as an adjunct to general anesthesia for surgery of the upper extremity. This technique involves the injection of local anesthetic agents in close proximity to the<unk><unk> , temporarily blocking the sensation and ability to move the upper extremity. The subject can remain awake during the ensuing surgical procedure, or they can be sedated or even fully anesthetized if necessary. There are several techniques for blocking the nerves of the<unk><unk> . These techniques are classified by the level at which the needle or catheter is inserted for injecting the local anesthetic — interscalene block on the neck for example is considered the second most complete postoperative analgesia, supraclavicular block immediately above the clavicle, infraclavicular block below the clavicle and axillary block in the axilla (armpit).
Brachial plexus block
Nerve block
Paracervical block
Retrobulbar block
Sciatic nerve block
Spinal manipulation
Trifascicular block
Spinal mobilization