Reproducibility and reliability of the outerbridge classification for grading chondral lesions of the knee arthroscopically
Reproducibility and reliability of the outerbridge classification for grading chondral lesions of the knee arthroscopically
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DOI：
10.1177/03635465030310012601
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发表时间：
2003-01-01
影响因子：
4.8
通讯作者：
Steadman, JR
中科院分区：
文献类型：
--
作者：
Cameron, ML;Briggs, KK;Steadman, JR
背景资料：很少有研究调查的准确性和再现性的Outerbridge分类系统的分类在knee.Hypothesis软骨损伤：关节镜下分配Outerbridge等级是准确的，可靠的，可重复的。研究设计：尸体研究：方法：6个尸体膝关节进行诊断性关节镜检查，并录像。然后进行关节切开术，并使用卡尺测量关节镜下识别的病变。9名骨科医生对每个视频进行了审查，并对每个软骨病变进行了两次分级。根据关节镜检查和关节切开术确定的等级之间的一致性百分比计算观察的准确性。结果：总体准确性为68%，但因位置而异。两种评分之间的Kappa系数为0.602; 63%的时间关节镜分级高于关节切开术分级。观察者内和观察者间kappa系数分别为0.80和0.52。两名医生在实践中5年或以上的平均观察者之间的Kappa值为0.72，与0.50的医生在实践中少于5 years.Conclusions：Outerbridge分类是中等准确的分级软骨病变关节镜下。临床相关性：无论骨科医生的经验水平如何，他们都可以使用Outerbridge分类法对膝关节软骨病变进行准确分级。(C)2003年美国骨科学会运动医学。
Background: Few studies have investigated the accuracy and reproducibility of the Outerbridge classification system for classification of chondral damage in the knee.Hypothesis: Arthroscopically assigned Outerbridge grades are accurate, reliable, and reproducible. Study Design: Cadaver study.Methods: Six cadaveric knees underwent diagnostic arthroscopy, which was videotaped. An arthrotomy was then performed and the arthroscopically identified lesions were measured with calipers. Nine orthopaedic surgeons reviewed each video and graded each chondral lesion two separate times. Accuracy of observations was calculated based on the percentage of agreement between the grades determined during arthroscopy and arthrotomy.Results: The overall accuracy was 68% but varied by location. The kappa coefficient between the two scores was 0.602; the arthroscopy grade was higher than the arthrotomy grade 63% of the time. The intraobserver and interobserver kappa coefficients were 0.80 and 0.52, respectively. The mean interobserver kappa between the two physicians in practice 5 years or more was 0.72, compared with 0.50 for physicians in practice less than 5 years.Conclusions: The Outerbridge classification was moderately accurate when used to grade chondral lesions arthroscopically. Clinical Relevance:Orthopaedic surgeons can accurately grade chondral lesions of the knee with the Outerbridge classification, regardless of their level of experience.(C) 2003 American Orthopaedic Society for Sports Medicine.