Endoscopic release of the carpal tunnel: a technical note.

The Agee technique is a standard approach for the endoscopic release of the carpal tunnel. We describe a modification of the technique. This involves dilatation of the path for the blade assembly with urethral dilators. This permits a graded dilatation of the path. We believe it creates a track of more uniform width. It also provides more accurate information about the tightness of the carpal tunnel. Its adoption may reduce the chance of nerve injury.