San Francisco— Anesthesia type is a significant predictor of postoperative delirium in patients undergoing unilateral total knee arthroplasty.
According to a retrospective analysis of anesthesia billing data, International Classification of Diseases, Ninth Revision (ICD-9) codes and demographic information, patients who have received general anesthesia may be twice as likely to develop delirium postoperatively when compared with combined spinal-epidural, epidural or spinal patients. Given