Abstract
Carpal tunnel syndrome is a common peripheral nerve disease, often requiring surgical intervention. After the first description of endoscopic carpal tunnel release 20 years ago, several endoscopic techniques have been described. The endoscopic procedure seems to have a better outcome in terms of time to return to work. A feared complication of endoscopic carpal tunnel release is injury to the median nerve or branches of the median nerve. We developed a new guiding cannula with raised borders, which will prevent accidental injury to the median nerve. A single-portal anterograde technique, to release the transverse carpal ligament, is described with the use of this new guiding device.
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