This is a pilot or feasibility study (designated as UG3 by the Department of Defense) which will be a randomized, double-masked, placebo-controlled, parallel-arm, human subjects pilot study with two Specific Aims:
Specific Aim 1 (UG3): To determine the feasibility and optimize the protocol of the
Arthroscopic rotator cuff repair is among the most painful of orthopedic surgeries (1-3). Hundreds of thousands of these procedures are carried out in the U.S. each year. Many involve the use of a brachial plexus nerve block, which serves to control pain for 12 to 14 hours. However, when the block