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  • Title: Long-term results of the uncemented low contact stress total knee replacement in patients with rheumatoid arthritis.
    Author: Sharma S, Nicol F, Hullin MG, McCreath SW.
    Journal: J Bone Joint Surg Br; 2005 Aug; 87(8):1077-80. PubMed ID: 16049242.
    Abstract:
    We analysed the long-term clinical and radiological results of 63 uncemented Low Contact Stress total knee replacements in 47 patients with rheumatoid arthritis. At a mean follow-up of 12.9 years (10 to 16), 36 patients (49 knees) were still alive; three patients (five knees) were lost to follow-up. Revision was necessary in three knees (4.8%) and the rate of infection was 3.2%. The mean clinical and functional Knee Society scores were 90 (30 to 98) and 59 (25 to 90), respectively, at final follow-up and the mean active range of movement was 104 degrees (55 degrees to 120 degrees ). The survival rate was 94% at 16 years but 85.5% of patients lost to follow-up were considered as failures. Radiological evidence of impending failure was noted in one knee.
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