铰链膝假体在重度外翻膝全膝关节置换术中的应用

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Abstract Objective To investigate the feasibility，safety and efficacy of Endo-model hinged knee prosthesis in total knee arthroplasty for patients with severe valgus knee.Methods The study included 10 cases aged 29~72 years，with anaverage of 45 years old.There were 7 females and 3 males.8 cases were unilateral and 2 patients with rheumatoid arthritis were bilateral.All the patients underwent total knee arthroplasty with hinge knee joint prosthesis.Femur-tibia angle(FTA)，knee society score(KSS)，range of motion was applied to evaluate the situation of functional recovery.Results The patients were followedup at 1，3，6，12，24，36 month after surgery.The postoperative pain was significantly decreased.The knee deformity，stability and function all was good.Extension angle all reached 180°.Angle of greatest flexion can reach 95°~125°，with anaver age of 110°.KSS was improved from 34.25 before operation to 86.73 points after operation.Lower limb deformity and joint function improved.Postoperative X-ray shows good alignment and an average FTA of 6.62°.The prosthesis was on the good place.Conclusion The therapeutic effect of Endo-model rotational hinge knee prosthesis used to severe valgus knee is satisfactory.The function of knee joint was significantly improved after operation.However，the indications need to be strictly confined and long-term follow-up is still required.

Key words： hinge-knee prosthesis severe valgus deformity total knee arthroplasty

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http://www.sygkzz.com/EN/ OR http://www.sygkzz.com/EN/Y2018/V24/I8/701

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