目的 观察Slot双下肢全长负重位X线检查技术在全膝关节置换术前检查中的应用价值.方法 对36例拟接受全膝关节置换术的患者术前行双下肢全长负重位X线检查.采用Slot技术,通过一次连续数秒曝光获得包含双髋关节至踝关节的双下肢全长负重位X线影像.结果 36例患者均一次性完成全膝关节置换术前双下肢全长负重位X线检查,其中膝关节内翻畸形34例,外翻畸形2例.所摄X线片中,患者双髋关节、股骨、膝关节、胫腓骨及踝关节均显示良好,可为术前计划提供可靠依据.结论 采用Slot双下肢全长负重位X线检查技术对拟接受全膝关节置换术患者进行术前检查,能够清晰显示双下肢全长,对术前计划与评估具有重要临床价值.%Objective To investigate the application value of Slot full-length both lower extremities weight bearing position X-ray radiography in the preoperative examination of total knee arthroplasty. Methods A retrospective analysis of full-length both lower extremities weight bearing position X-ray radiography in the preoperative examination of 36 patients scheduled for total knee arthroplasty was performed. Using Slot technology, bilateral hip joints to ankle joint images was obtained by exposing seconds continuously to get full-length both lower extremities weight bearing position X-ray. Results The full-length both lower extremities weight bearing position X-ray examination was one time completed in all 36 patients, including 34 of knee varus deformity and 2 of valgus deformity. Bilateral hip joints, femur, knee, tibia and fibula ankle joint were clearly displayed in the X-ray image, therefore providing a reliable X-ray image for the preoperative plan of total knee arthroplasty. Conclusion Slot full-length both lower extremities weight bearing position X-ray radiography can display full-length both lower extremities clearly, and has important clinical value in preoperative planning and assessment of total knee arthroplasty.
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