This creates space around the carpal tunnel. We were able to expand the ligament by one-third. When the balloon is removed, the ligament stays stretched. The transverse carpal ligament serves a protective purpose in the palm and is important for grip strength, Dr. Berger said. A custom-designed nerve protector protects the median nerve and flexor tendons in the carpal tunnel during balloon inflation.
Doctors also use a pressure gauge monitor and a specially-designed hand holder during the procedure.
Average patient follow-up was done at two years. Dr. Berger said the new procedure is an extension of conservative management. Unlike open or endoscopic procedures, the new technique does not burn any bridges. Dr. Berger is currently awaiting approval from the U.S. Food and Drug Administration Division so that the devices can become available for other physicians to use.