Retrospective Cohort Study
Copyright ©The Author(s) 2018.
World J Orthop. Aug 18, 2018; 9(8): 105-111
Published online Aug 18, 2018. doi: 10.5312/wjo.v9.i8.105
Table 2 Patients receiving a brachial plexus block on the day of surgery n (%)
With pre-op opioid dependence/abuseWithout pre-op opioid dependence/abuseP-value
TSA92 (58.60)4105 (53.44)0.199
RSA108 (52.43)3461 (51.55)0.803