全髋关节置换手术（THA）是治疗老年股骨颈骨折、中晚期股骨头坏死及终末期髋关节骨关节炎的有效手段。然而，THA术后仍存在假体无菌性松动、周围骨折和假体脱位等严重并发症，这使得THA术前选择合适的髋关节假体型号和放置位置成为手术医师面临的重要挑战。目前常用的THA术前规划方法主要依赖二维X线或三维CT的静态影像，未能充分考虑髋关节在负重以及运动、腰椎-髋关节联合变化以及假体运动过程中撞击等问题。近来双平面X线影像系统作为一种新型在体、动态放射成像技术，为THA术前规划提供了全面、准确的动态三维数据。但目前关于双平面X线辅助THA术前三维规划的技术流程和专家共识尚未建立，影响了该技术的推广和应用。鉴于此，全国骨科专家和相关专业代表共同讨论提出七个共识问题，并通过对与会专家推荐意见的问卷调查得出“专家推荐率”和“强烈推荐率”。该共识旨在为双平面X线辅助全髋关节置换术前三维规划技术的规范化应用提供指导和参考。

Total hip arthroplasty (THA) is an effective treatment for elderly femoral neck fractures, mid- to late-stage femoral head necrosis, and end-stage hip osteoarthritis. However, serious complications such as aseptic loosening of the prosthesis, peripheral fractures, and dislocation of the prosthesis still exist following THA, which makes the selection of the appropriate hip prosthesis type and placement position before THA an important challenge for surgeons. Currently, the commonly used preoperative planning methods for THA mainly rely on static images from 2D X-ray or 3D CT, which fail to adequately consider the hip joint in weight-bearing as well as motion, lumbar-hip joint changes, and prosthetic impingement during motion. Recently, the dual fluoroscopic imaging system, as a new in-vivo, dynamic radiological imaging technology, provides comprehensive and accurate dynamic three-dimensional data for THA preoperative planning. However, the technical process and expert consensus on preoperative three-dimensional planning of total hip arthroplasty using a dual fluoroscopic imaging system have not yet been established, which affects the promotion and application of this technology. In light of the above, national orthopaedic experts and related professional representatives discussed and proposed seven consensus issues, and the ‘expert recommendation rate’ and ‘strong recommendation rate’ were obtained through a questionnaire survey on the recommendations of the participating experts. The consensus aims to provide guidance and reference for the standardised application of preoperative three-dimensional planning of total hip arthroplasty using a dual fluoroscopic imaging system.