Factors influencing postoperative urinary retention following orthopaedic surgical procedures.

This study was designed to identify factors contributing to postoperative urinary retention in patients undergoing hip and knee replacements and reconstructive surgeries. The clinical literature links post-operative urinary retention to various factors including a history of postoperative urinary problems, advanced age, the total amount of fluid replacement over a 24-hour postoperative period, type of anesthesia, pain management medications, and the route and length of medication administration.