The purpose of this project was to explore the effectiveness of clinical path methods for total knee and total hip replacement patients. Patient’s length of stay, medical cost, quality of care, and patient satisfaction were evaluated. It was performed in a medical center’s orthopedic units in Taipei, Taiwan. The process included preparation, implementation, and evaluation phases. The total sample size for total knee replacement was 187, and 64 for total hip replacement. The results showed that the patient’s length of stay was significantly reduced, average charges were decreased, and quality of patient care was maintained. Patients were highly satisfied with these clinical path methods.