目的

针对中度外翻膝的膝骨关节炎患者，利用机器人辅助下进行全膝关节置换术，评估假体功能性对位的优势。

方法

收集广东省第二中医院中度膝外翻的膝骨关节炎患者1例，术前利用CT数据计算截骨参数，在机器人辅助下进行全膝关节置换术，术中采用假体功能性对线技术，只通过调整截骨量来平衡膝关节内外侧间隙，术后通过X光评估下肢的力线情况。

结果

在机器人辅助下进行全膝关节置换术，术中可以根据术前设定的关节线倾斜3°的中立位截骨参数及术中内外侧软组织的压力，动态调整股骨和胫骨的截骨量。术后下肢力线恢复，患者满意度高。

结论

机器人辅助全膝关节置换术的精准性和可重复性高，可以降低年轻医师的手术难度和术后并发症的发生，改善患者的生活质量。

Objective

To perform total knee arthroplasty using robot-assisted total knee arthroplasty for patients with osteoarthritis of the knee with moderate valgus knee, and to evaluate the advantages of functional alignment of the prosthesis.

Methods

One patient with osteoarthritis of the knee with moderate valgus knee was collected from the Second Traditional Chinese Medicine Hospital of Guangdong Province,and the osteotomy parameters were calculated using CT data before surgery, and total knee arthroplasty was performed with robot assistance, and the prosthesis functional alignment technique was used during surgery to balance the medial and lateral knee joint gaps by adjusting the osteotomy volume only, and the force line of the lower limb was assessed by X-ray after surgery.

Results

Total knee arthroplasty was performed with robotic assistance, and the amount of femoral and tibial osteotomies could be dynamically adjusted intraoperatively according to the neutral osteotomy parameters set preoperatively with a three degrees joint line inclination and intraoperative pressure on the medial and lateral soft tissues.The lower limb force line was restored postoperatively with high patient satisfaction.

Conclusion

Robot-assisted total knee arthroplasty has high precision and reproducibility, which can reduce the surgical difficulty and postoperative complications for young surgeons and improve the quality of life of patients.