Carpal tunnel syndrome: a case of median nerve injection injury and a safe and effective method for injecting the carpal tunnel.

The carpal tunnel syndrome is a compressive neuropathy of the median nerve at the wrist. The local injection of corticosteroid is an effective treatment modality in properly selected cases; however, this usually efficacious and safe procedure may result in serious complications if insufficient attention is paid to technique. A recent case of severe median nerve injury secondary to local steroid injection at the wrist prompted this report. We present a safe and effective method for injection of the carpal tunnel syndrome.