J Korean Orthop Assoc.  2010 Jun;45(3):198-203. 10.4055/jkoa.2010.45.3.198.

Mid Term Results of Total Knee Arthroplasty (8 to 10 Years)

• Lee DC
• Shon OJ
• Park CH
• Lee MH

• KMID: 2185518
• DOI: http://doi.org/10.4055/jkoa.2010.45.3.198

Abstract

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 102.7degrees (55-130degrees) preoperatively and 116.4degrees (90-140degrees) at the last follow-up. 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 6.5degrees preoperatively to valgus 4.6degrees 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.

Keyword

knee; PFC total knee arthroplasty; mid term results

MeSH Terms

Arthroplasty
Follow-Up Studies
Humans
Knee
Knee Joint
Range of Motion, Articular
Replantation
Survival Rate

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