Postoperative delirium risk in elderly high-risk patients undergoing hip and knee arthroplasty (ASA Ⅲ-Ⅳ): construction and validation of a nomogram model based on frail frailty index
Objective To create and verify a nomogram for predicting postoperative delirium (POD) in elderly patients having knee or hip replacements based on the FRAIL frailty index. Methods 582 elderly patients with American Society of Anesthesiologists (ASA) grades III-IV who had elective primary total hip or knee arthroplasty...