Clinical outcomes of robotic-assisted and manual total hip arthroplasty in the same patient: A case report

Figure 1 Preoperative imaging findings. A: The patient's preoperative pelvic radiograph showed Association Research Circulation Osseous stage IV osteonecrosis of the femoral head in both hips; B: Postoperative follow-up of the patient's pelvic radiograph [robot-assisted total hip arthroplasty (THA) on the left; manual THA on the right].

Figure 2 Preoperative computed tomography scan. A: Preoperative computed tomography parameters were uploaded to the Stryker Robotic Surgery Center for three-dimensional modeling; B: Preoperatively, the acetabular cup inclination was 42° and anteversion was 20°; C: Implantation of the prosthesis was simulated to determine the surgical plan.