Abstract: Objective: To investigate the current status of perioperative pain management practice among medical staff caring for patients undergoing Total Knee Arthroplasty (TKA), and analyze its influencing factors, in order to provide a basis for optimizing TKA pain management strategies. Methods: Guided by the Theory of Planned Behavior, we developed the perioperative pain management behavior questionnaire for TKA medical staff. From March to April 2024, we surveyed 307 doctors and nurses involved in the diagnosis and care of TKA patients by convenience sampling method. Single-factor analysis and multiple stepwise linear regression were employed to identify influencing factors. Results: The overall score for perioperative pain management behavior among medical staff was 77.42±10.59, corresponding to a scoring rate of 86.0%. Influencing factors included self-evaluation, personnel category (operating room and orthopedic nurses), age, learning of TKA pain management during school years, explained 22.1% of the total variation. Conclusion: While medical staff demonstrate a generally positive attitude toward TKA perioperative pain management, a gap remains between their attitudes and actual clinical practices. Variations in subjective norms were observed, with non-standardized pain management documentation being a prevalent issue.

Key words: Total Knee Arthroplasty; perioperative period; pain management; Theory of Planned Behavior; medical staff