Which regional anesthesia technique is the best for arthroscopic shoulder surgery in terms of postoperative outcomes? A comprehensive literature review.

OBJECTIVE The literature offers numerous reviews and meta-analyses assessing the different regional anesthesia techniques employed for arthroscopic shoulder surgery (ATS) in terms of diverse outcome parameters. Most have focused on analgesic efficacy in the limited post-operative period as their primary outcome. Indeed, the most up-to-date guidelines are based on the results of comparisons that focus on analgesic efficacy and analgesic drug consumption. However, a correlation has yet to be demonstrated between post-operative analgesia and functional recovery; indeed, the latter has received relatively less research attention concerning the anesthetic technique despite its clinical importance. Here, we aimed to identify the best loco-regional anesthetic technique for ATS, considering all the evaluation parameters considered to date. MATERIALS AND METHODS We performed a comprehensive literature review on ATS, searching for all the relative aspects of the regional anesthesia technique employed and the outcome parameters assessed. RESULTS From the literature, it is not clear which technique is better than the others. No single technique was revealed as being the absolute best, independent of the outcome parameter considered, which included: post-operative analgesic effect, speed of functional recovery, ease, and safety of execution. CONCLUSIONS The choice of anesthetic technique should be tailored to the patient and type of surgery. When comparing one type of loco-regional anesthesia against another, in addition to analgesic efficacy, a whole plethora of aspects need to be considered (i.e., feasibility, complications, contribution to functional recovery, etc.).