The outcome of total knee arthroplasty in obese patients
The outcome of total knee arthroplasty in obese patients
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DOI：
10.2106/00004623-200408000-00002
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发表时间：
2004-08-01
影响因子：
5.3
通讯作者：
Hungerford, DS
中科院分区：
文献类型：
--
作者：
Foran, JRH;Mont, MA;Hungerford, DS
背景资料：体重增加与膝关节骨关节炎和肥胖的高患病率有关的证据强调了定义肥胖患者全膝关节置换术结局的重要性。本研究的目的是比较的临床和影像学结果进行全膝关节置换术的肥胖患者与非肥胖patients.Methods进行的全膝关节置换术的临床和影像学数据进行了比较，对78例全膝关节置换术在68个肥胖患者与一组匹配的非肥胖患者的数据。在对肥胖组的肥胖程度进行分层后，也进行了分析。所有患者均使用相同的假体。结果：平均随访80个月时，肥胖组膝关节学会评分≥ 80分者占88%，显著低于同期非肥胖组的99%。病态肥胖亚组的翻修率显著高于非肥胖组（p = 0.02）。结论：本研究的结果表明，任何程度的肥胖，定义为体重指数大于或等于30，对全膝关节置换术的结果都有负面影响。证据等级：预后研究，II-1级（回顾性研究）。证据等级的完整描述见作者说明。
Background: Evidence linking increased body weight to osteoarthritis of the knee and the high prevalence of obesity underscore the importance of defining the outcome of total knee arthroplasty in obese patients. The purpose of this study was to compare the clinical and radiographic results of total knee arthroplasties performed in obese patients with those of total knee arthroplasties performed in nonobese patients.Methods: Clinical and radiographic data on seventy-eight total knee arthroplasties in sixty-eight obese patients were compared with data on a matched group of nonobese patients. The analysis was also performed after stratification of the obese group for the degree of obesity. All patients had the same prosthesis. The clinical data that were analyzed included the Knee Society objective and functional scores, patellofemoral symptoms, activity level, and complications.Results: The percentage of knees with a Knee Society score of greater than or equal to80 points at an average of eighty months was 88% in the obese group, which was significantly lower than the 99% rate in the nonobese group at the same time. The morbidly obese subgroup had a significantly higher revision rate than did the nonobese group (p = 0.02).Conclusions: The results of the present study suggest that any degree of obesity, defined as a body mass index of greater than or equal to30, has a negative effect on the outcome of total knee replacement.Level of Evidence: Prognostic study, Level II-1 (retrospective study). See Instructions to Authors for a complete description of levels of evidence.