Harbrecht Andreas, Hackl Michael, Ott Nadine, Uschok Stephan, Wegmann Kilian, Müller Lars P, Leschinger Tim
University of Cologne, Faculty of Medicine and University Hospital, Center for Orthopedic and Trauma Surgery, Kerpener Str. 62, 50937, Cologne, Germany.
Orthopädische Chirurgie München, Munich, Germany.
J Orthop. 2024 Feb 24;52:102-106. doi: 10.1016/j.jor.2024.02.026. eCollection 2024 Jun.
Olecranon fractures are classified using the commonly accepted Mayo classification. Its reliability has been analyzed by means of radiographs. A CT scan is often obtained due to joint involvement. Purpose of this study was to evaluate the intra- and interobserver reliability of the Mayo classification based on CT examination.
Radiographic and CT images of 20 olecranon fractures were classified by four surgeons at two time points 30 days apart. Intra- and interobserver reliability were assessed using coefficients.
Mean intraobserver reliability between X-rays was substantial and between CTs almost perfect (0.76 and 0.82, respectively). Mean interobserver reliability was fair for X-rays and moderate for CTs (0.32 and 0.44, respectively).
Despite the more detailed imaging compared with radiography only moderate interobserver reliability was found for the classification of olecranon fractures based on CT imaging. This might lead to inconsistent fracture classification in both scientific and clinical setting.
尺骨鹰嘴骨折采用普遍认可的梅奥分类法进行分类。已通过X线片分析了其可靠性。由于关节受累，常需进行CT扫描。本研究的目的是评估基于CT检查的梅奥分类法在观察者内和观察者间的可靠性。
20例尺骨鹰嘴骨折的X线片和CT图像由4位外科医生在相隔30天的两个时间点进行分类。使用系数评估观察者内和观察者间的可靠性。
X线片之间的平均观察者内可靠性较高，CT之间的几乎完美（分别为0.76和0.82）。X线片的平均观察者间可靠性为一般，CT的为中等（分别为0.32和0.44）。
尽管与单纯X线摄影相比，CT成像更详细，但基于CT成像的尺骨鹰嘴骨折分类的观察者间可靠性仅为中等。这可能导致在科研和临床环境中骨折分类不一致。
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