Introduction
hip joint diseases, THA, pain
COMPLICATIONS
Total hip arthroplasty (THA) is an effective method for advanced hip joint diseases. At present, the main purpose of THA is to reduce pain and improve the function of the hip joint. Globally, there are more than 1 million THAs every year, and the number is increasing yearly [With the increasing types of prostheses, THA has significantly grown in complexity over time. Inappropriate placement will not only affect the stability and bone integration and increase the probability of complications after THA [The X-ray template or digital two-dimensional template is a commonly used method for preoperative planning. It predicts the size and position of the prosthesis with an accuracy of 78–95% [In this study, an independently developed manipulator-assisted robot was used for preoperative planning and compared with conventional two-dimensional digital X-ray planning. The purpose of this study was to focus on whether robotic arm-assisted THA (rTHA) can improve preoperative planning compared to conventional THA (cTHA). Besides, the improvement of intraoperative decision-making between the two groups was also explored in this study.