Artificial intelligence (AI) is altering the world of medicine. Given the rapid advances in technology, computers are now able to learn and improve, imitating humanoid cognitive function. AI applications currently exist in various medical specialties, some of which are already in clinical use. This review presents the potential uses and limitations of AI in arthroplasty to provide a better understanding of the existing technology and future direction of this field.Recent literature demonstrates that the utilization of AI in the field of arthroplasty has the potential to improve patient care through better diagnosis, screening, planning, monitoring, and prediction. The implementation of AI technology will enable arthroplasty surgeons to provide patient-specific management in clinical decision making, preoperative health optimization, resource allocation, decision support, and early intervention. While this technology presents a variety of exciting opportunities, it also has several limitations and challenges that need to be overcome to ensure its safety and effectiveness.

The adductor canal block (ACB) is a useful adjunct to control postoperative pain in total knee arthroplasty (TKA). The aim of our study was to compare postoperative day 1 (POD1) pain scores, ambulation distance, range of motion, active straight leg raise (SLR), and length of stay (LOS) in TKA patients receiving no ACB (NACB), ACB by surgeon (ACBS), or ACB by anesthetist (ACBA). After obtaining institutional ethics approval, a retrospective review of 135 patients who underwent TKA between September 2020 and March 2021 was performed. All patients underwent TKA by the same surgeon and received the same standardized postoperative rehabilitation. Operating theater time was shortest in the NACB group with 129.3 ± 23.1 minutes compared with 152.4 ± 31.6 minutes in ACBA and 139.2 ± 29.4 minutes in ABCS (p = 0.001). For the POD1 pain score after therapy, the NACB group scored 4.9 ± 3.1 compared with 3.5 ± 2.2 and 3.9 ± 1.8 scored by the ACBA and ACBS groups, respectively (p = 0.302). The mean POD1 ambulation distance was 21.1 ± 15.2 m in the NACB group compared with 15.4 ± 1.3 and 17.8 ± 13.2 m in the ACBA and ACBS groups (all p > 0.05), respectively. There were no significant differences in the median LOS between three groups or ability to perform active SLR (all p > 0.05). Our study found no significant differences when comparing ACBS and ACBA by POD1 pain score, ambulation distance, range of motion, and LOS. We recommend against the use of ACB and instead recommend surgeons to perform an adequate periarticular cocktail injection.

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