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KMID : 1039020170400040168
The Ewha Medical Journal
2017 Volume.40 No. 4 p.168 ~ p.170
Hypoesthesia of the Cutaneous Branch of Cervical Plexus after Shoulder Arthroscopy under General Anesthesia with Ultrasound Guided-Interscalene Block
Jeong Ji-Sun

Woo Jae-Hee
Chung Rack-Kyung
Kim Dong-Yeon
Chae Ji-Seon
Abstract
We present an uncommon case of hypoesthesia in the posterior and upper third of the superior area on the left ear auricle, after arthroscopic surgery of the shoulder in the lateral position under general anesthesia with ultrasound guided-interscalene brachial plexus block. A 65-year-old man underwent arthroscopic rotator cuff repair of the left shoulder in the right lateral decubitus position. Two days after operation, he complained of numbness around the left auricle; his symptoms persisted until 6 weeks after surgery. Audiometry and sensory examinations were normal. He recovered naturally by 6 months postoperatively. Postoperative neurological deficits that may not be block-related can be attributed to a combination of factors, such as patient-, anesthesia-, and surgery-related factors, including direct trauma, positioning, and retraction. Anesthesiologists should be aware that the injury may not be block-related and consider other possible causes.
KEYWORD
Hypoesthesia, Shoulder arthroscopes, Peripheral nerves, Patient positioning
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