Total Knee Arthroplasty (Replacement)

With the advent of an aging society, the demand for total knee arthroplasty (TKA) continues to increase. Postoperative recovery is influenced not only by the surgical procedure itself but also by pain control, joint function, and physical resilience. Enhanced Recovery After Surgery (ERAS) promotes postoperative recovery through multidisciplinary integrated care; however, related research in Taiwan remains limited, particularly studies that simultaneously examine pain, joint function, and physical resilience. This study aims to investigate the effects of the Enhanced Recovery After Surgery (ERAS) care model on changes in postoperative pain, knee function, and physical resilience among older adults undergoing total knee arthroplasty. A quasi-experimental study with convenience sampling will be conducted. Participants will be allocated to either the ERAS group or the routine care group according to the care model received. Outcome measurements will be obtained preoperatively, on postoperative day 1, postoperative day 3, and two weeks after discharge. Pain will be assessed using the Numeric Rating Scale (NRS), knee function using the Chinese version of the Knee Injury and Osteoarthritis Outcome Score (KOOS), and physical resilience using the Physical Resilience Instrument for Older Adults (PRIFOR). Clinical recovery indicators, including vital signs, length of hospital stay, and time to first ambulation, will also be collected. The ERAS care model is expected to improve postoperative pain, promote recovery of knee function, enhance physical resilience, shorten the length of hospital stay, and facilitate earlier ambulation. The findings of this study are expected to provide evidence for optimizing perioperative care and supporting the implementation of ERAS for older adults undergoing total knee arthroplasty.

The goal of the clinical trial is to evaluate the efficacy of the AtMoves Knee System in the clinical diagnostic process of aseptic loosening in patients with a knee prosthesis. The main question it aims to answer is: Does the use of the AtMoves Knee System reduce the percentage of failed outcomes? A "failed outcome" is defined as a change in the patient-reported Knee injury and Osteoarthritis Outcome Score (KOOS-PS) that is lower than the minimal clinically important difference at 12 months. Researchers will compare two groups: The first group will undergo an additional CT scan using the AtMoves Knee System. The second group will not undergo these scans. Both groups are allowed to undergo additional diagnostic measures. Researchers will compare the percentage of "failed outcomes" between these groups. During the one-year follow-up, participants in both groups will be asked to fill out questionnaires.