Intermittent intra-articular local anaesthetic infiltration was administered with the Pain Care 2000 (BREG Inc, Vista, CA, USA) while CISB was provided by way of the PainBuster elastomeric device (Surgical Synergies, Auckland, NZ).
This retrospective analysis shows that for patients undergoing rotator cuff repair in a multi-provider private practice setting, CISB is associated with a reduction in total opioid/tramadol and antiemetic use during the first 24 postoperative hours.
Minimisation of postoperative pain and opioid consumption in patients receiving CISB is likely to provide benefits beyond the immediate postoperative period.
Additional cost savings in suitable patients receiving CISB could also be made by day of surgery discharge (NZ$300 to NZ$500 per night) (6), as time to discharge readiness following major shoulder surgery has been previously shown to be reduced by this treatment (10).
Despite the support for CISB provided by this and previous studies, barriers exist to the further uptake of this technique by many anaesthetists.
There was, however, a reduction in antiemetic consumption in the CISB group during the hospitalisation period.