Major neurovascular complications of endoscopic carpal tunnel release

Endoscopic carpal tunnel release is becoming an increasingly popular method of surgically correcting median nerve compression. Several complications have been suggested as possibilities following the technique; however, to date, there have been only isolated reports of iatrogenic injury to major neurovascular structures in the hand. We report both a case of transection of the median nerve and a pseudoaneurysm of the superficial palmar arch following endoscopic carpal tunnel release.