Evaluation of credibility and repeatability of modified acetabular fracture classification system / 中华创伤杂志

ABSTRACT

The Letournel-Judet classification system for acetabular fractures is widely used, but there are still some shortcomings, such as incomplete classification and confusion of classification concepts, which cannot effectively guide the treatment. Professor Hou Zhiyong proposed and elaborated an improved acetabular fracture classification system based on the concept of three columns of acetabulum. However, the credibility and repeatability of the classification still lacked validation from clinical data. In this regard, the author included 463 patients with relatively complete imaging data admitted to Third Hospital of Hebei Medical University and Honghui Hospital affiliated to Xi'an Jiaotong University Medical College in the past five years. Four trauma orthopedists classified the patients according to the modified classification method of acetabular fracture. After two months, the original sequence of imaging data was disrupted and re-classified by the same trauma orthopedists. The consistency of the classification was evaluated by Kappa test and compared with Letournel-Judet classification. The results showed that credibility and repeatability of the modified classification were higher than Letournel-Judet classification, suggesting the feasibility of clinical application.