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KMID : 0361620070420060737
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Journal of the Korean Orthopaedic Association
2007 Volume.42 No. 6 p.737 ~ p.742
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The Outcome of Total Knee Arthroplasty in Diabetics
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Kang Seung-Baik
Cho Young-Jae
Yoon Kang-Sup
Lee Ji-Ho
Jo Hyun-Chul
Lee Jae-Hyup
Han Hyuk-Soo
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Abstract
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Purpose: To analyze the results of total knee arthroplasty (TKA) in patients with diabetes mellitus (DM).
Materials and Methods: Between 1996 and 2001, 601 TKAs in 373 patients were performed by a single surgeon. From this series, 45 patients (74 knees) were diagnosed as type II DM and osteoarthritis of the knee. The mean follow-up was 49 months (6-108 months), and the mean age was 68.6 years (54-83 years). The clinical outcome of the diabetic and non diabetic group was compared using the Hospital for special surgery score (HSS) and the Knee society clinical and radiological scoring system. The radiological loosening and perioperative complications were evaluated. The plasma Hemoglobin A1c (HbA1c) level of the diabetes patients was examined pre and postoperatively.
Results: The knee and pain scores were higher in the diabetes group postoperatively (p=0.040, p=0.039, respectively), whereas the HSS scores and overall function scores were lower in the diabetes group postoperatively (p=0.021, p=0.016, respectively). The rate of superficial wound problems was greater in the diabetes group (8.1% versus 2.4%, p=0.032). However the incidence of a deep infection was similar in the diabetic and non diabetic group (2.7% versus 0.9%). The mean HbA1c level was significantly higher in the diabetic patients with a superficial and deep infection than in the remaining diabetic patients (p=0.033).
Conclusion: The HbA1c level might be a valuable predictor of superficial wound complications and deep infection. Although the clinical results were similar in the diabetes and non diabetes groups, special precautions should be taken for diabetic patients undergoing TKA to minimize complications.
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KEYWORD
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Diabetes mellitus, Osteoarthritis, Infection, HbA1c, Total knee arthroplasty
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