None listed
Conditions
Brief summary
Pain following shoulder surgery can be severe, and can be minimised by the application of local anaesthetic to the nerves supplying the shoulder. This study compares the traditional technique, which involves an injection into the side of the neck, with a new technique that involves two injections around the back of the shoulder. The aim of the study is determine how the techniques compare with regard to the quality of pain relief, and side effects and complications
Interventions
Combined suprascapular and axillary (circumflex) nerve block
Ropivacaine 0.75 % 30ml total. 15ml applied to each nerve via 10cm 22 guage insulated needle using a nerve stimulator set between 1.0 and 0.5 milliamps.
Expected duration of nerve block is 12 to 18 hours
Sponsors
University of Auckland
Study design
Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used)
Eligibility
Sex/Gender
All
Age
16 Years to No maximum
Healthy volunteers
No
Inclusion criteria
Patients requiring minor arthroscopic shoulder surgery under the care of the principal investigators and coninvestigators.
Exclusion criteria
Patient refusal Communication problems due to deafness or cognitive impairment Preexisting neurological disease affecting brachial plexus and its terminal nerves on the operative side Allergy to amide local anaesthetic Chronic opioid usage Severe respiratory disease Intolerance of all non-steroidal anti-inflammatory drugs Infection at site of needle puncture
Outcome results
None listed