Effect of Preoperative Pain Education on Anxiety, Pain, and Analgesic Use in Total Knee and Hip Replacement Patients

Inclusion criteria: * Being 18 years of age or older, * Providing voluntary informed consent to participate in the study, * Scheduled to undergo elective knee or hip joint replacement (arthroplasty) surgery, * Having no communication barriers, * Having no history of alcohol or substance dependence, * Having no concurrent diagnosis of malignant disease and not receiving cancer treatment, * Not using opioid medications regularly in the preoperative period, * Having an ASA score of III or below, * Having no cognitive impairment that would affect the ability to comprehend the provided education, * Having no diagnosed neurological or psychiatric disorder and not using medications related to such conditions. Exclusion criteria: \- Patients who do not meet the specified inclusion criteria will not be included in the study. Elimination criteria: * Indication for postoperative intensive care, * Development of major complications after surgery, such as massive bleeding or pulmonary embolism, * Requesting to withdraw from the study at any stage, * Use of a patient-controlled analgesia device postoperatively