Interscalene block has been the traditional regional anesthesia for shoulder surgery and postoperative pain. However, the risk of phrenic nerve palsy and irreversible nerve injury have encouraged search for alternative methods.
Analyzing block effects of the lateral sagittal infraclavicular brachial plexus block(posterior and lateral chord), the investigators found it affecting all shoulder relevant nerves , except for the suprascapular and the supraclavicular nerves. Accordingly, by combining a superficial cervical plexus block, suprascapular nerve block and block of the posterior and lateral chords infraclavicularly, the investigators believe this novel combination would provide anesthesia for patients scheduled for shoulder surgery.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
20
Nerve block: 31 ml ropivacaine 7.5 mg/ml (Lateral sagittal infraclavicular brachial plexus block) + 4 ml ropivacaine 5 mg/ml (suprascapular nerve block) + 5 ml ropivacaine 5 mg/ml (superficial cervical plexus block)
University Hospital of North Norway
Tromsø, Troms, Norway
The need for general anaesthesia
Investigators will record the number of patients who need to be converted to general anaesthesia
Time frame: Intraoperatively
Surgeons satisfaction with the working conditions
Graded in a) Good and b) Poor
Time frame: Intraoperatively
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