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KMID : 1207720150070010062
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Clinics in Orthopedic Surgery
2015 Volume.7 No. 1 p.62 ~ p.68
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Total Knee Replacement Arthroplasty with Buechel and Pappas Knee: Minimum 2-Year Follow-up
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Moon Kyoung-Ho
Hong Seung-Hyun
Hong Taek-Ho
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Abstract
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Background: Clinical and radiologic evaluation and analyses of the surgeries using Buechel and Pappas (B-P) knee implants.
Methods: The study was conducted on 60 patients who underwent 94 total knee replacement arthroplasty with B-P knee implants from May 2009 to December 2010. The results were compared to the results of 41 patients who underwent 60 knee joint surgeries using NexGen-LPS implants from January 2008 to August 2009.
Results: The American Knee Society score of the B-P knee group increased from an average of 66.9 (clinical score) and 65.5 (functional score) to 93.4 and 90.3, respectively; while those for the NexGen-LPS group increased from an average of 68.8 (clinical score) and 62.4 (functional score) to 86.3 and 76, respectively. The average ranges of motion of the B-P knee group and the NexGen-LPS group were 119.1° and 114.8°, respectively, before surgery and improved to 121.0° and 123.0° at final follow-up after the surgery. The visual analogue scale scores for the B-P knee group and the NexGen-LPS group improved from 4.7 and 4.6 to 1.4 and 1.8, respectively. The flexion contracture also improved from 5.1° and 6.3° to 0.64° and 1.72°. The tibio-femoral angle for the B-P knee group and the NexGen-LPS group also improved greatly after the surgery, from varus 0.34° and 0.73° each to valgus 6.7° and 6.9°, respectively.
Conclusions: The evaluation of more than 2 years of total knee replacement arthroplasty using B-P knee implants showed good results. B-P knee implants showed a relatively higher degree of satisfaction in clinical knee score and less intraoperative bone mass removal than NexGen-LPS implants.
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KEYWORD
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Buechel and Pappas knee, NexGen-LPS, Total knee arthroplasty
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