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  • Title: [Preliminary clinical outcome of domestic posterior-stabilized total knee arthroplasty].
    Author: Xu ZH, Chen DY, Qiu XS, Jiang Q, Yuan T, Weng WJ.
    Journal: Zhongguo Gu Shang; 2009 Jun; 22(6):410-2. PubMed ID: 19594033.
    Abstract:
    OBJECTIVE: Total knee arthroplasty (TKA) has been widely used in China. More and more attentions are paid to the development of knee prosthesis that fit for the anatomy of Chinese knee. This study is to summarize the surgical techniques and clinical outcome of domestic posterior-stabilized total knee arthroplasty. METHODS: Fifty-one patients including 19 males and 32 females underwent TKA by using TC-Dynamic from Jan. 2003 to Dec. 2004 were reviewed. The average age at the time of operation was (76.4 +/- 4.1) years (range, 71 to 84 years). Thirty-seven patients suffered from osteoarthritis and 14 patients were rheumatism arthritis. The courses of the disease ranged from 5 to 40 years and the symptoms were pain and limitation of motion. The knee rating score system (HSS) as well as X-rays of the lower extremity was used to evaluate the clinical results. RESULTS: All patients were followed up at the 3rd month after TKA and the duration of follow-up of 32 patients ranged from 48 to 61 months. The HSS scores before TKA was (53.3 +/- 6.7) (40 to 59) points. At the 3rd month and 48th month of follow-up, the HSS scores were (86.1 +/- 7.7) (63 to 95) and (83.5 +/- 8.1) (60 to 95) points respectively. The stress X-rays showed preoperative varus deformities from 9 degrees to 30 degrees with the average of (21.0 +/- 5.8) degrees and normal alignment of the lower extremities postoperative. There were no complications related to TC-Dynamic prosthesis and other complications such as infection, prosthetic loosening and dislocation of patella. CONCLUSION: There is a good mid-term clinical result of TC-Dynamic knee system, which is designed according to anatomical characteristic of Chinese knee joint. More attention should be paid to this knee system about the long term follow-up.
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