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KMID : 0361620100450030198
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Journal of the Korean Orthopaedic Association
2010 Volume.45 No. 3 p.198 ~ p.203
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Mid Term Results of Total Knee Arthroplasty (8 to 10 Years)
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Lee Dong-Chul
Sohn Oog-Jin
Park Chul-Hyun
Lee Man-Ho
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Abstract
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Purpose: We wanted to evaluate the mid-term (8 to 10 years) clinical and radiologic results of total knee arthroplasty.
Materials and Methods: We evaluated 71 knees in 45 patients after they had undergone total knee arthroplasty between January 1996 and April 1998. All the procedures were performed by a single-surgeon using the PFC (Press Fit Condylar) system. The clinical and radiologic results were evaluated using the American Knee Society Scoring System and the American Knee Society Roentgenographic Evaluation and Scoring System. Survivorship analysis was performed using the Kaplan-Meier method with revision for any reason as the end point.
Results: The average range of motion of the knee joint was 102.7˚ (55-130˚) preoperatively and 116.4˚ (90-140˚) at the last followup. The average knee and functional scores were improved from 46.2 and 42 preoperatively to 88.7 and 82.9, respectively, at the last follow-up. The tibiofemoral angle changed from varus 6.5˚ preoperatively to valgus 4.6˚ at the last follow-up. The total radiolucecy rate was 34% and the total radiolucency score was 1.9. Reimplantations were performed in 5 cases and the survival rate was 94.7% at 8 years. No differences was found in the survival rate according to PCL preservation.
Conclusion: The mid-term results of PFC total knee arthroplasty were reliable and satisfactory because there was an increased range of motion, decreased pain, restoration of function and a relatively low complication rate.
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KEYWORD
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knee, PFC total knee arthroplasty, mid term results
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