Erratum

Thomas LC, Graham SK, Osteen KD, Porter HS, Nossaman BD. Comparison of ultrasound and nerve stumulation techniques for interscalene brachial plexus block for shoulder surgery in a residency training environment: a randomized, controlled, observer-based trial. Ochsner J. 2011 Fall; 11(3):246–252.

The authors learned after publication of this manuscript that some of the data sheets used to collect information for this study had information on patient assignment on the back side of the form. Therefore, the study had the potential for incomplete blinding. The authors and editors apologize for the error and present this correction to our readers.

• Academic Division of Ochsner Clinic Foundation