부산대학교 도서관

Introduction: Hip resurfacing arthroplasty (HRA) is a surgical option with positive outcomes at medium-term follow-up for young, active patients with osteoarthritis. However, early failures of HRA often occur due to improper implant placement. The purpose of this study was to assess the utility of computer-assisted navigation in the effort to optimize implant positioning following HRA. Materials and Methods: A retrospective analysis of 262 consecutive HRAs at a single institution was performed. Radiographic analysis included measurements of cup inclination and anteversion, leg length restoration (LLR), and offset. Cup position was evaluated based on placement within Lewinnek parameters and the surgeon's preferred anteversion (10[degrees] to 20[degrees]). Chi-squared and unpaired Student's t-test were performed for all categorical and continuous variables, respectively. Results: One hundred fifty-six cases were performed using conventional technique and 106 cases used computer-navigation. Computer-assisted HRA (caHRA) had a longer mean surgical time (129 vs. 110 minutes; p < 0.001) but shorter average LOS (1.1 vs. 1.5 days; p Conclusion: Computer-assisted technology in HRA allows for comparable clinical outcomes to conventional technique. Cup position accuracy and precision is improved by computer navigation in HRA.
Hip resurfacing arthroplasty (HRA) is a femoral bone sparing alternative to total hip arthroplasty (THA) and is predominantly used for younger active males and characterized by the utilization of metal-on-metal [...]