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KMID : 0359620080200010077
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Journal of Korean Knee Society
2008 Volume.20 No. 1 p.77 ~ p.82
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Total Knee Arthroplasty using a Medial Pivot Knee -Minimum 2-year Follow-up Results-
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Lee Song
Ko Dong-Oh
Kim Jin-Hak
Jeon Young-Won
Kim Kwan-Soo
Kim Tae-Woo
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Abstract
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Purpose: To evaluate short-term clinical and radiologic outcomes after Advance(R) total knee arthroplasty (TKA).
Materials and Methods: We evaluated 226 patients who underwent 348 TKAs using medial pivot knees and who were followed up for more than 2 years. The average follow-up period was 40.6 months. We evaluated clinical outcomes based on range of motion (ROM), Knee Society score, and functional score. Radiographic outcomesand complications were also recorded.
Results: The average flexion contracture improved from a preoperative value of 6.2° to a last follow-up value of 1.3°. The average knee flexion was 114° preoperatively and 109° at last follow-up. The average knee and functional scores were 43.1 and 50.8, respectively, in the preoperative period and 86.2 and 77.9, respectively, in the postoperative period. Complications included 3 avulsion fractures of the medial collateral ligament, 2 delayed infections, 2 periprosthetic fractures, and 1 patellar dislocation.
Conclusion: The short-term clinical results associated with medial pivot TKA were acceptable. However, more experience and long-term follow-up will be necessary to better determine the efficacy of this procedure.
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KEYWORD
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Medial pivot knee, TKA
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